Bump azure-functions from 1.21.3 to 1.22.1

Bumps [azure-functions](https://github.com/Azure/azure-functions-python-worker) from 1.21.3 to 1.22.1.
- [Release notes](https://github.com/Azure/azure-functions-python-worker/releases)
- [Commits](https://github.com/Azure/azure-functions-python-worker/commits)

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

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Author: dependabot[bot]