Chore(deps-dev): Bump weirdan/doctrine-psalm-plugin in /tools/03_psalm

Bumps [weirdan/doctrine-psalm-plugin](https://github.com/psalm/psalm-plugin-doctrine) from 2.8.1 to 2.9.0.
- [Release notes](https://github.com/psalm/psalm-plugin-doctrine/releases)
- [Changelog](https://github.com/psalm/psalm-plugin-doctrine/blob/2.x/CHANGELOG.md)
- [Commits](psalm/psalm-plugin-doctrine@v2.8.1...v2.9.0)

---
updated-dependencies:
- dependency-name: weirdan/doctrine-psalm-plugin
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

tools/03_psalm/composer.json

@@ -9,7 +9,7 @@
 		"psalm/plugin-phpunit": "0.18.4",
 		"psalm/plugin-symfony": "5.0.3",
 		"vimeo/psalm": "5.13.1",
-		"weirdan/doctrine-psalm-plugin": "2.8.1"
+		"weirdan/doctrine-psalm-plugin": "2.9.0"
 	},
 	"config": {
 		"allow-plugins": true,