Bump doctrine/orm from 2.19.7 to 3.3.1

Bumps [doctrine/orm](https://github.com/doctrine/orm) from 2.19.7 to 3.3.1.
- [Release notes](https://github.com/doctrine/orm/releases)
- [Upgrade guide](https://github.com/doctrine/orm/blob/3.3.x/UPGRADE.md)
- [Commits](doctrine/orm@2.19.7...3.3.1)

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

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

Author: dependabot[bot]

composer.json

@@ -13,7 +13,7 @@
         "composer/package-versions-deprecated": "^1.11.99.2",
         "doctrine/doctrine-bundle": "^2.4",
         "doctrine/doctrine-migrations-bundle": "^3.1",
-        "doctrine/orm": "^2.9",
+        "doctrine/orm": "^3.3",
         "jbelien/oauth2-openstreetmap": "^0.1.1",
         "knplabs/knp-time-bundle": "^2.0",
         "knpuniversity/oauth2-client-bundle": "^2.8",