composer(deps-dev): bump the version-updates group with 2 updates

Updates the requirements on [phpstan/phpstan-deprecation-rules](https://github.com/phpstan/phpstan-deprecation-rules) and [tomasvotruba/unused-public](https://github.com/TomasVotruba/unused-public) to permit the latest version.

Updates `phpstan/phpstan-deprecation-rules` to 1.2.1
- [Release notes](https://github.com/phpstan/phpstan-deprecation-rules/releases)
- [Commits](phpstan/phpstan-deprecation-rules@1.2.0...1.2.1)

Updates `tomasvotruba/unused-public` to 0.4.0
- [Commits](TomasVotruba/unused-public@0.3.11...0.4.0)

---
updated-dependencies:
- dependency-name: phpstan/phpstan-deprecation-rules
  dependency-type: direct:development
  dependency-group: version-updates
- dependency-name: tomasvotruba/unused-public
  dependency-type: direct:development
  dependency-group: version-updates
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -34,15 +34,15 @@
     "nikic/php-parser": "^4.19.1 || ^5.0.2",
     "phpstan/extension-installer": "^1.4.3",
     "phpstan/phpstan": "^1.12.3",
-    "phpstan/phpstan-deprecation-rules": "^1.2.0",
+    "phpstan/phpstan-deprecation-rules": "^1.2.1",
     "phpstan/phpstan-phpunit": "^1.4.0",
     "phpunit/phpunit": "^10.5.26",
     "rector/rector": "^1.2.5",
     "rector/type-perfect": "^0.2.0",
     "symplify/phpstan-rules": "^13.0.1",
     "tomasvotruba/cognitive-complexity": "^0.2.3",
     "tomasvotruba/type-coverage": "^0.3.1",
-    "tomasvotruba/unused-public": "^0.3.11"
+    "tomasvotruba/unused-public": "^0.4.0"
   },
   "minimum-stability": "stable",
   "prefer-stable": true,