chore(deps): bump endroid/qr-code in the php-dependencies group

Bumps the php-dependencies group with 1 update: [endroid/qr-code](https://github.com/endroid/qr-code).


Updates `endroid/qr-code` from 5.1.0 to 6.0.2
- [Release notes](https://github.com/endroid/qr-code/releases)
- [Commits](endroid/qr-code@5.1.0...6.0.2)

---
updated-dependencies:
- dependency-name: endroid/qr-code
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: php-dependencies
...

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

composer.json

@@ -13,7 +13,7 @@
         "doctrine/doctrine-bundle": "^2.7",
         "doctrine/doctrine-fixtures-bundle": "~3.4",
         "doctrine/orm": "^2.13",
-        "endroid/qr-code": "^5.0",
+        "endroid/qr-code": "^6.0",
         "ircmaxell/password-compat": "~1.0.3",
         "knplabs/knp-menu-bundle": "^3.0",
         "mopa/bootstrap-bundle": "~3.0",