Revert "Release preparation for version 2.22.2"

[nickrolfe]

Reverts #20105, since we need to re-run the release automation for a hotfix.

[Copilot]

Pull Request Overview

This PR reverts a previous release preparation for version 2.22.2, rolling back version numbers and removing published release notes across multiple CodeQL language packs and shared libraries. The revert is being performed to re-run the release automation for a hotfix.

• Reverts version numbers from release versions back to development versions (adding -dev suffix)
• Rolls back lastReleaseVersion values to previous releases
• Removes released change note files and changelog entries
• Converts some released change notes back to unreleased format with YAML frontmatter

Reviewed Changes

Copilot reviewed 201 out of 201 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Language pack qlpack.yml files	Revert version numbers from release to dev versions
codeql-pack.release.yml files	Roll back lastReleaseVersion to previous versions
Released change-notes files	Remove published release notes
CHANGELOG.md files	Remove changelog entries for reverted releases
Unreleased change-notes	Convert some back to YAML frontmatter format

Comments suppressed due to low confidence (1)

shared/concepts/qlpack.yml:2

• The version 0.0.0-dev is inconsistent with the typical pattern used in other packages. Most packages use X.Y.Z-dev format where X.Y.Z matches the previous release version. Consider using 0.0.1-dev to maintain consistency.

version: 0.0.0-dev

[nickrolfe]

This is just a simple revert generated by the GitHub UI's "revert" button. I'd approve it myself if I were allowed.