Bump azure-functions from 1.19.0 to 1.20.0

Bumps [azure-functions](https://github.com/Azure/azure-functions-python-worker) from 1.19.0 to 1.20.0.
- [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
...

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

requirements.txt

@@ -1,2 +1,2 @@
-azure-functions==1.19.0
+azure-functions==1.20.0
 fastapi==0.111.0