Bump camelcase from 6.0.0 to 6.3.0 in /functions

Bumps [camelcase](https://github.com/sindresorhus/camelcase) from 6.0.0 to 6.3.0.
- [Release notes](https://github.com/sindresorhus/camelcase/releases)
- [Commits](sindresorhus/camelcase@v6.0.0...v6.3.0)

---
updated-dependencies:
- dependency-name: camelcase
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

functions/package-lock.json

@@ -16,7 +16,7 @@
   },
   "main": "lib/index.js",
   "dependencies": {
-    "camelcase": "^6.0.0",
+    "camelcase": "^6.3.0",
     "firebase-admin": "^9.4.1",
     "firebase-function-tools": "^1.1.4",
     "firebase-functions": "^3.12.0",