chore(release): 0.2.2 — keep all Symfony components on 7.4

- Add symfony/flex so extra.symfony.require "7.4.*" is enforced for
  transitive components (dependency-injection had drifted to 8.0.15)
- Group Symfony packages in Renovate and restrict them to ~7.4
- Copy symfony.lock in Docker builds so Flex doesn't re-apply recipes
- Add missing 0.2.1 changelog section and cut 0.2.2

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -7,6 +7,26 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.2.2] - 2026-10-02
+
+### Changed
+
+- Added `symfony/flex` so `extra.symfony.require: "7.4.*"` is enforced — every Symfony component, including transitive ones, now stays on 7.4 LTS
+- Renovate groups all Symfony components into a single PR and restricts them to `~7.4`
+- Dependency updates:
+  - Symfony components 7.4.x → latest 7.4 patch (`cache`, `console`, `framework-bundle`, `http-client`, `http-kernel`, `yaml`, … → 7.4.20)
+  - `symfony/dependency-injection` back to 7.4.20 (a transitive update had pulled in 8.0.15)
+  - `symfony/monolog-bundle` 4.0.2 → 4.1.0
+  - `monolog/monolog` 3.10.0 → 3.12.1
+  - `phpstan/phpstan` 2.2.5 → 2.2.16
+- Docker builds copy `symfony.lock` so Flex doesn't re-apply recipes during `composer install`
+
+## [0.2.1] - 2026-07-31
+
+### Added
+
+- Gitea Actions `test.yml` workflow — builds dev and prod images and runs PHPUnit and PHPStan on pushes and PRs to `main`
+
 ### Fixed
 
 - Removed a leftover `composer dump-env prod` call in the prod Docker build stage — the command doesn't exist in this project's Composer setup and broke every image build
@@ -83,7 +103,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Docker multi-stage build (`base → deps → build → final`)
 - Basic `/health` endpoint
 
-[Unreleased]: https://github.com/ArthurErlich/git-contribution-graph/compare/0.2.0...HEAD
+[Unreleased]: https://github.com/ArthurErlich/git-contribution-graph/compare/0.2.2...HEAD
+[0.2.2]: https://github.com/ArthurErlich/git-contribution-graph/compare/0.2.1...0.2.2
+[0.2.1]: https://github.com/ArthurErlich/git-contribution-graph/compare/0.2.0...0.2.1
 [0.2.0]: https://github.com/ArthurErlich/git-contribution-graph/compare/0.1.0...0.2.0
 [0.1.0]: https://github.com/ArthurErlich/git-contribution-graph/compare/0.0.1...0.1.0
 [0.0.1]: https://github.com/ArthurErlich/git-contribution-graph/releases/tag/0.0.1