Bump @google-cloud/functions-framework from 3.1.0 to 3.1.2

Bumps [@google-cloud/functions-framework](https://github.com/GoogleCloudPlatform/functions-framework-nodejs) from 3.1.0 to 3.1.2.
- [Release notes](https://github.com/GoogleCloudPlatform/functions-framework-nodejs/releases)
- [Changelog](https://github.com/GoogleCloudPlatform/functions-framework-nodejs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/GoogleCloudPlatform/functions-framework-nodejs/compare/v3.1.0...v3.1.2)

---
updated-dependencies:
- dependency-name: "@google-cloud/functions-framework"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

packages/pdf-handler/package.json

@@ -23,7 +23,7 @@
     "@types/node": "^14.11.2"
   },
   "dependencies": {
-    "@google-cloud/functions-framework": "3.1.0",
+    "@google-cloud/functions-framework": "3.1.2",
     "@google-cloud/pubsub": "^2.16.3",
     "@google-cloud/storage": "^5.18.1",
     "axios": "^0.27.2",