Bump the apollo-server group in /backend with 3 updates

Bumps the apollo-server group in /backend with 3 updates: [apollo-server](https://github.com/apollographql/apollo-server/tree/HEAD/packages/apollo-server), [apollo-server-express](https://github.com/apollographql/apollo-server/tree/HEAD/packages/apollo-server-express) and [apollo-server-testing](https://github.com/apollographql/apollo-server/tree/HEAD/packages/apollo-server-testing).


Updates `apollo-server` from 2.14.2 to 3.13.0
- [Release notes](https://github.com/apollographql/apollo-server/releases)
- [Commits](https://github.com/apollographql/apollo-server/commits/apollo-server@3.13.0/packages/apollo-server)

Updates `apollo-server-express` from 2.14.2 to 3.13.0
- [Release notes](https://github.com/apollographql/apollo-server/releases)
- [Commits](https://github.com/apollographql/apollo-server/commits/apollo-server-express@3.13.0/packages/apollo-server-express)

Updates `apollo-server-testing` from 2.11.0 to 2.25.3
- [Release notes](https://github.com/apollographql/apollo-server/releases)
- [Changelog](https://github.com/apollographql/apollo-server/blob/apollo-server-testing@2.25.3/CHANGELOG.md)
- [Commits](https://github.com/apollographql/apollo-server/commits/apollo-server-testing@2.25.3/packages/apollo-server-testing)

---
updated-dependencies:
- dependency-name: apollo-server
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: apollo-server
- dependency-name: apollo-server-express
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: apollo-server
- dependency-name: apollo-server-testing
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: apollo-server
...

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

backend/package.json

@@ -34,8 +34,8 @@
     "apollo-client": "~2.6.10",
     "apollo-link-context": "~1.0.20",
     "apollo-link-http": "~1.5.17",
-    "apollo-server": "~2.14.2",
-    "apollo-server-express": "^2.14.2",
+    "apollo-server": "~3.13.0",
+    "apollo-server-express": "^3.13.0",
     "aws-sdk": "^2.1691.0",
     "babel-core": "~7.0.0-0",
     "babel-eslint": "~10.1.0",
@@ -100,7 +100,7 @@
     "@types/node": "^22.8.4",
     "@typescript-eslint/eslint-plugin": "^5.62.0",
     "@typescript-eslint/parser": "^5.62.0",
-    "apollo-server-testing": "~2.11.0",
+    "apollo-server-testing": "~2.25.3",
     "eslint": "^8.57.1",
     "eslint-config-prettier": "^9.1.0",
     "eslint-config-standard": "^17.1.0",