Bump @google-cloud/bigquery in /infra/bigquery-export

Bumps [@google-cloud/bigquery](https://github.com/googleapis/nodejs-bigquery) from 7.9.1 to 7.9.4.
- [Release notes](https://github.com/googleapis/nodejs-bigquery/releases)
- [Changelog](https://github.com/googleapis/nodejs-bigquery/blob/main/CHANGELOG.md)
- [Commits](googleapis/nodejs-bigquery@v7.9.1...v7.9.4)

---
updated-dependencies:
- dependency-name: "@google-cloud/bigquery"
  dependency-version: 7.9.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

infra/bigquery-export/package-lock.json

@@ -8,7 +8,7 @@
   },
   "type": "module",
   "dependencies": {
-    "@google-cloud/bigquery": "7.9.1",
+    "@google-cloud/bigquery": "7.9.4",
     "@google-cloud/firestore": "7.10.0",
     "@google-cloud/storage": "7.14.0"
   },