[skip-changelog] Let integration test choose the latest minor version of python (#2007)

Author: cmaglie

.github/workflows/test-go-integration-task.yml

@@ -5,7 +5,7 @@ env:
   # See: https://github.com/actions/setup-go/tree/main#supported-version-syntax
   GO_VERSION: "1.17"
   # See: https://github.com/actions/setup-python/tree/main#available-versions-of-python
-  PYTHON_VERSION: "3.9.6"
+  PYTHON_VERSION: "3.9"
 
 # See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows
 on: