Bump google-cloud-datastore from 2.19.0 to 2.20.1 in /results-processor

Bumps [google-cloud-datastore](https://github.com/googleapis/python-datastore) from 2.19.0 to 2.20.1.
- [Release notes](https://github.com/googleapis/python-datastore/releases)
- [Changelog](https://github.com/googleapis/python-datastore/blob/main/CHANGELOG.md)
- [Commits](googleapis/python-datastore@v2.19.0...v2.20.1)

---
updated-dependencies:
- dependency-name: google-cloud-datastore
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

results-processor/requirements.txt

@@ -35,7 +35,7 @@ google-cloud-core==2.3.1
     # via
     #   google-cloud-datastore
     #   google-cloud-storage
-google-cloud-datastore==2.20.0
+google-cloud-datastore==2.20.1
     # via -r requirements.in
 google-cloud-storage==2.18.2
     # via -r requirements.in
@@ -79,7 +79,7 @@ packaging==23.1
     # via gunicorn
 proto-plus==1.22.3
     # via google-cloud-datastore
-protobuf==3.19.5
+protobuf==4.25.4
     # via
     #   google-api-core
     #   google-cloud-datastore