ci: bump python module docker version check

ci: bump python module docker version check

test/conftest.py

@@ -557,5 +557,5 @@ try:
 except docker.errors.ImageNotFound:
     pytest.exit("The docker image 'nginxproxy/nginx-proxy:test' is missing")
 
-if Version(docker.__version__) < Version("5.0.0"):
-    pytest.exit("This test suite is meant to work with the python docker module v5.0.0 or later")
+if Version(docker.__version__) < Version("7.0.0"):
+    pytest.exit("This test suite is meant to work with the python docker module v7.0.0 or later")