Bump grpc from 1.64.0 to 1.66.0 in /http2/ruby-grpc (#114)

* Bump grpc from 1.64.0 to 1.66.0 in /http2/ruby-grpc

Bumps [grpc](https://github.com/google/grpc) from 1.64.0 to 1.66.0.
- [Release notes](https://github.com/google/grpc/releases)
- [Changelog](https://github.com/grpc/grpc/blob/master/doc/grpc_release_schedule.md)
- [Commits](grpc/grpc@v1.64.0...v1.66.0)

---
updated-dependencies:
- dependency-name: grpc
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

* Regenerate code with protobuf v4.27

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Clemens Hoffmann <[email protected]>

http2/ruby-grpc/Gemfile.lock

@@ -1,13 +1,17 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    google-protobuf (3.25.3)
-    googleapis-common-protos-types (1.14.0)
-      google-protobuf (~> 3.18)
-    grpc (1.64.0)
-      google-protobuf (~> 3.25)
+    bigdecimal (3.1.8)
+    google-protobuf (4.27.3)
+      bigdecimal
+      rake (>= 13)
+    googleapis-common-protos-types (1.15.0)
+      google-protobuf (>= 3.18, < 5.a)
+    grpc (1.66.0)
+      google-protobuf (>= 3.25, < 5.0)
       googleapis-common-protos-types (~> 1.0)
     grpc-tools (1.66.0)
+    rake (13.2.1)
 
 PLATFORMS
   ruby

http2/ruby-grpc/README.md

@@ -27,7 +27,7 @@ grpcurl -proto example.proto ruby-grpc-test.my.cf.app.domain:443 Example.Run
 2. `PORT=8080 bundle exec ruby server.rb`
 3. `grpcurl -proto example.proto -plaintext localhost:8080 Example.Run`
 
-### Renerating code
+### Regenerating code
 
 ```shell
 bundle install --path vendor/bundle