Bump apollo-server-express from 2.9.3 to 2.9.4 (parse-community#6083)

Bumps [apollo-server-express](https://github.com/apollographql/apollo-server) from 2.9.3 to 2.9.4.
- [Release notes](https://github.com/apollographql/apollo-server/releases)
- [Changelog](https://github.com/apollographql/apollo-server/blob/master/CHANGELOG.md)
- [Commits](https://github.com/apollographql/apollo-server/compare/[email protected]@2.9.4)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -24,7 +24,7 @@
     "@parse/push-adapter": "3.0.10",
     "@parse/s3-files-adapter": "1.3.0",
     "@parse/simple-mailgun-adapter": "1.1.0",
-    "apollo-server-express": "2.9.3",
+    "apollo-server-express": "2.9.4",
     "bcryptjs": "2.4.3",
     "body-parser": "1.19.0",
     "commander": "3.0.2",