Bump fast-xml-parser and @google-cloud/storage in /functions

Bumps [fast-xml-parser](https://github.com/NaturalIntelligence/fast-xml-parser) to 5.5.6 and updates ancestor dependency [@google-cloud/storage](https://github.com/googleapis/nodejs-storage). These dependencies need to be updated together.


Updates `fast-xml-parser` from 4.4.1 to 5.5.6
- [Release notes](https://github.com/NaturalIntelligence/fast-xml-parser/releases)
- [Changelog](https://github.com/NaturalIntelligence/fast-xml-parser/blob/master/CHANGELOG.md)
- [Commits](NaturalIntelligence/fast-xml-parser@v4.4.1...v5.5.6)

Updates `@google-cloud/storage` from 7.18.0 to 7.19.0
- [Release notes](https://github.com/googleapis/nodejs-storage/releases)
- [Changelog](https://github.com/googleapis/nodejs-storage/blob/main/CHANGELOG.md)
- [Commits](googleapis/nodejs-storage@v7.18.0...v7.19.0)

---
updated-dependencies:
- dependency-name: fast-xml-parser
  dependency-version: 5.5.6
  dependency-type: indirect
- dependency-name: "@google-cloud/storage"
  dependency-version: 7.19.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

functions/package-lock.json

@@ -19,7 +19,7 @@
     "start:src": "npm run build:src -- --watch"
   },
   "dependencies": {
-    "@google-cloud/storage": "^7.18.0",
+    "@google-cloud/storage": "^7.19.0",
     "express": "^5.2.1",
     "firebase-admin": "^12.7.0",
     "firebase-functions": "^5.1.1",