Bump picomatch in /unit-test-cloud-functions/functions

Bumps [picomatch](https://github.com/micromatch/picomatch) from 2.2.2 to 2.3.2.
- [Release notes](https://github.com/micromatch/picomatch/releases)
- [Changelog](https://github.com/micromatch/picomatch/blob/master/CHANGELOG.md)
- [Commits](micromatch/picomatch@2.2.2...2.3.2)

---
updated-dependencies:
- dependency-name: picomatch
  dependency-version: 2.3.2
  dependency-type: indirect
...

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Author: dependabot[bot]