Bump doctrine/collections from 1.8.0 to 2.3.0

Bumps [doctrine/collections](https://github.com/doctrine/collections) from 1.8.0 to 2.3.0.
- [Release notes](https://github.com/doctrine/collections/releases)
- [Upgrade guide](https://github.com/doctrine/collections/blob/2.3.x/UPGRADE.md)
- [Commits](https://github.com/doctrine/collections/compare/1.8.0...2.3.0)

---
updated-dependencies:
- dependency-name: doctrine/collections
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

composer.json

@@ -60,7 +60,7 @@
         "babdev/pagerfanta-bundle": "^4.5",
         "craue/config-bundle": "^2.7.0",
         "defuse/php-encryption": "^2.4",
-        "doctrine/collections": "^1.8",
+        "doctrine/collections": "^2.3",
         "doctrine/common": "^3.5.0",
         "doctrine/dbal": "^3.9.4",
         "doctrine/doctrine-bundle": "^2.13.2",