chore(deps): bump h2

Bumps [h2](https://github.com/python-hyper/h2) from 4.3.0 to 4.4.1.
- [Changelog](https://github.com/python-hyper/h2/blob/master/CHANGELOG.rst)
- [Commits](python-hyper/h2@v4.3.0...v4.4.1)

---
updated-dependencies:
- dependency-name: h2
  dependency-version: 4.4.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

dataflow/flex-templates/pipeline_with_dependencies/requirements.txt

@@ -231,7 +231,7 @@ grpclib==0.4.9
     # via betterproto
 h11==0.16.0
     # via httpcore
-h2==4.3.0
+h2==4.4.1
     # via grpclib
 hpack==4.2.0
     # via h2