Merge pull request #2236 from nginx-proxy/dependabot/pip/test/requirements/docker-6.1.1

ci: bump docker from 6.0.1 to 6.1.1 in /test/requirements

test/requirements/python-requirements.txt

@@ -1,5 +1,5 @@
 backoff==2.2.1
 docker-compose==1.29.2
-docker==6.0.1
+docker==6.1.1
 pytest==7.3.1
 requests==2.29.0