Removed testing polyfills that will be deprecated in next versions fr…

…om Changelogger. (#40162)

* Expanded the yoast/phpunit-polyfill package allowed versions.

* Changelog.

* Brought the v1 requirements back.

* Removed unneeded polyfill in ChangeEntryTest.

* ChangelogEntryTest fixes.

* ChangelogTest fixes.

* CommandLoaderTest fixes.

* ConfigTest fix.

* SemverVersioningTest fixes.

* WordPressVersioningTest fixes.

* UtilsTest fixes.

* Static fixtures for parent test case.

* AddCommandTest fixes.

* SquashCommandTest fix.

* VersionCommandTest fix.

* VersionCommandTest fix.

* WriteCommandTest fix.

* Update projects/packages/changelogger/composer.json

Co-authored-by: Brad Jorsch <anomiex@users.noreply.github.com>

* Updated plugin lock files.

* Changelogs.

* Lock update."

* Changelog.

* Disabled GPG signing for test commits.

* Try updating PHPUnit XML configuration.

* Reverted PHPUnit configuration and polyfills back to original state.

* Revert "Lock update.""

This reverts commit 8b94c270a7668ed41d985028967a6ae6f8ab4250.

* Revert "Changelogs."

This reverts commit 310ec9399f9f99d33ef5594f18842e378ac6d3c0.

* Revert "Updated plugin lock files."

This reverts commit e27834878d0fcf47585e6e1af25d197a3771220b.

* Revert "Changelog."

This reverts commit d8b64ddaaf5248fa42178c75361342ab249766c4.

* Disable global git config instead of disabling signatures.

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Co-authored-by: Brandon Kraft <public@brandonkraft.com>
Co-authored-by: Brad Jorsch <anomiex@users.noreply.github.com>

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/11958267197

Upstream-Ref: Automattic/jetpack@1352759