ci: use python:3.10 and run npm ci on PRs

[v1v]

According to actions/runner-images#10636, it's not using ubuntu-22 but ubuntu-24

Therefore, the release is not working anymore and it fails with

npm error code 127
npm error path /home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/fibers
npm error command failed
npm error command sh -c node build.js || nodejs build.js
npm error gyp info it worked if it ends with ok
npm error gyp info using [email protected]
npm error gyp info using [email protected] | linux | x64
npm error gyp info find Python using Python version 3.12.3 found at "/usr/bin/python"
npm error gyp http GET https://nodejs.org/download/release/v18.20.5/node-v18.20.5-headers.tar.gz
npm error gyp http 200 https://nodejs.org/download/release/v18.20.5/node-v18.20.5-headers.tar.gz
npm error gyp http GET https://nodejs.org/download/release/v18.20.5/SHASUMS256.txt
npm error gyp http 200 https://nodejs.org/download/release/v18.20.5/SHASUMS256.txt
npm error (node:2275) [DEP0150] DeprecationWarning: Setting process.config is deprecated. In the future the property will be read-only.
npm error (Use `node --trace-deprecation ...` to show where the warning was created)
npm error gyp info spawn /usr/bin/python
npm error gyp info spawn args [
npm error gyp info spawn args   '/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/gyp/gyp_main.py',
npm error gyp info spawn args   'binding.gyp',
npm error gyp info spawn args   '-f',
npm error gyp info spawn args   'make',
npm error gyp info spawn args   '-I',
npm error gyp info spawn args   '/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/fibers/build/config.gypi',
npm error gyp info spawn args   '-I',
npm error gyp info spawn args   '/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/addon.gypi',
npm error gyp info spawn args   '-I',
npm error gyp info spawn args   '/home/runner/.cache/node-gyp/18.20.5/include/node/common.gypi',
npm error gyp info spawn args   '-Dlibrary=shared_library',
npm error gyp info spawn args   '-Dvisibility=default',
npm error gyp info spawn args   '-Dnode_root_dir=/home/runner/.cache/node-gyp/18.20.5',
npm error gyp info spawn args   '-Dnode_gyp_dir=/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp',
npm error gyp info spawn args   '-Dnode_lib_file=/home/runner/.cache/node-gyp/18.20.5/<(target_arch)/node.lib',
npm error gyp info spawn args   '-Dmodule_root_dir=/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/fibers',
npm error gyp info spawn args   '-Dnode_engine=v8',
npm error gyp info spawn args   '--depth=.',
npm error gyp info spawn args   '--no-parallel',
npm error gyp info spawn args   '--generator-output',
npm error gyp info spawn args   'build',
npm error gyp info spawn args   '-Goutput_dir=.'
npm error gyp info spawn args ]
npm error Traceback (most recent call last):
npm error   File "/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/gyp/gyp_main.py", line 50, in <module>
npm error     sys.exit(gyp.script_main())
npm error              ^^^^^^^^^^^^^^^^^
npm error   File "/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/gyp/pylib/gyp/__init__.py", line 554, in script_main
npm error     return main(sys.argv[1:])
npm error            ^^^^^^^^^^^^^^^^^^
npm error   File "/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/gyp/pylib/gyp/__init__.py", line 547, in main
npm error     return gyp_main(args)
npm error            ^^^^^^^^^^^^^^
npm error   File "/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/gyp/pylib/gyp/__init__.py", line 520, in gyp_main
npm error     [generator, flat_list, targets, data] = Load(
npm error                                             ^^^^^
npm error   File "/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/gyp/pylib/gyp/__init__.py", line 136, in Load
npm error     result = gyp.input.Load(build_files, default_variables, includes[:],
npm error              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
npm error   File "/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/gyp/pylib/gyp/input.py", line 2782, in Load
npm error     LoadTargetBuildFile(build_file, data, aux_data,
npm error   File "/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/gyp/pylib/gyp/input.py", line 391, in LoadTargetBuildFile
npm error     build_file_data = LoadOneBuildFile(build_file_path, data, aux_data,
npm error                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
npm error   File "/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/gyp/pylib/gyp/input.py", line 234, in LoadOneBuildFile
npm error     build_file_contents = open(build_file_path, 'rU').read()
npm error                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
npm error ValueError: invalid mode: 'rU' while trying to load binding.gyp
npm error gyp ERR! configure error 
npm error gyp ERR! stack Error: `gyp` failed with exit code: 1
npm error gyp ERR! stack     at ChildProcess.onCpExit (/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/node-gyp/lib/configure.js:351:16)
npm error gyp ERR! stack     at ChildProcess.emit (node:events:517:28)
npm error gyp ERR! stack     at ChildProcess._handle.onexit (node:internal/child_process:292:12)
npm error gyp ERR! System Linux 6.8.0-1017-azure
npm error gyp ERR! command "/opt/hostedtoolcache/node/18.20.5/x64/bin/node" "/home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/.bin/node-gyp" "rebuild" "--release"
npm error gyp ERR! cwd /home/runner/work/apm-agent-rum-js/apm-agent-rum-js/node_modules/fibers
npm error gyp ERR! node -v v18.20.5
npm error gyp ERR! node-gyp -v v5.1.1
npm error gyp ERR! not ok 
npm error node-gyp exited with code: 1
npm error Please make sure you are using a supported platform and node version. If you
npm error would like to compile fibers on this machine please make sure you have setup your
npm error build environment--
npm error Windows + OS X instructions here: https://github.com/nodejs/node-gyp
npm error Ubuntu users please run: `sudo apt-get install g++ build-essential`
npm error RHEL users please run: `yum install gcc-c++` and `yum groupinstall 'Development Tools'` 
npm error Alpine users please run: `sudo apk add python make g++`
npm error sh: 1: nodejs: not found
npm error A complete log of this run can be found in: /home/runner/.npm/_logs/[202](https://github.com/elastic/apm-agent-rum-js/actions/runs/12643693924/job/35230082388#step:7:203)5-01-07T01_52_42_995Z-debug-0.log

nodejs/node-gyp#2219 is the issue.

And the workaround is pin the version for python to 3.10.

Test

See https://github.com/elastic/apm-agent-rum-js/actions/runs/12647873070 and https://github.com/elastic/apm-agent-rum-js/actions/runs/12648168801

[v1v]

UTs failures

    ✗ should set metadata from config along with defaults
	[object Object] thrown
Chrome Headless 131.0.0.0 (Linux x86_64): Executed 13 of 390 (1 FAILED) (0.173 secs / 0.167 secs)
TOTAL: 1 FAILED, 12 SUCCESS
1) should set metadata from config along with defaults
     ApmServer
     [object Object] thrown
Chrome Headless 131.0.0.0 (Linux x86_64) failed specs:
  ApmServer > should set metadata from config along with defaults
	[object Object] thrown
lerna ERR! npm run test:unit exited 1 in '@elastic/apm-rum-core'
Error: Process completed with exit code 1.

[vigneshshanmugam]

Thanks @v1v