chore(deps): bump npm in /bigquery-firestore-export/functions

Bumps [npm](https://github.com/npm/cli) from 9.6.4 to 10.9.1.
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/v10.9.1/CHANGELOG.md)
- [Commits](npm/cli@v9.6.4...v10.9.1)

---
updated-dependencies:
- dependency-name: npm
  dependency-type: direct:production
...

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