Changelog validation: ensure changelog filename matches the package name

[cbbayburt]

GUI Diff

Before:

> changelogs.py java/spacewalk-NOT-JAVA.changes.cbbayburt.test ...

INFO: Changelog test passed

After:

> changelogs.py java/spacewalk-NOT-JAVA.changes.cbbayburt.test ...

INFO: Changelog test failed with 1 issue(s):
------------------------------------------------------------
ERROR: Changelog filename must be in format: 'spacewalk-java.changes.<author>.<feature>' for package spacewalk-java

Test coverage

• Unit tests were added

Links

Fixes #9480

Changelogs

Make sure the changelogs entries you are adding are compliant with https://github.com/uyuni-project/uyuni/wiki/Contributing#changelogs and https://github.com/uyuni-project/uyuni/wiki/Contributing#uyuni-projectuyuni-repository

If you don't need a changelog check, please mark this checkbox:

• No changelog needed

If you uncheck the checkbox after the PR is created, you will need to re-run changelog_test (see below)

Re-run a test

If you need to re-run a test, please mark the related checkbox, it will be unchecked automatically once it has re-run:

• Re-run test "changelog_test"
• Re-run test "backend_unittests_pgsql"
• Re-run test "java_pgsql_tests"
• Re-run test "schema_migration_test_pgsql"
• Re-run test "susemanager_unittests"
• Re-run test "javascript_lint"
• Re-run test "spacecmd_unittests"

Before you merge

Check How to branch and merge properly!

[cbosdo]

LGTM