Upgrade to Python 3.9 (#11763)

* Dockerfile to 3.9

* Python version

* More python updates

* 3.9 on GitHub actions and lint updates

* Test out 3.9.11 on GitHub actions

* install python with an action

* formatting: newline

* Also has python code

* only check first level for changed modules
Previous example (source-google-search-console/credentials)

* Test failure: there is no logger.trace

airbyte-cdk/python/docs/tutorials/cdk-tutorial-any-percent/cdk-speedrun.md

@@ -4,7 +4,7 @@ This is a blazing fast guide to building an HTTP source connector. Think of it a
 
 # Dependencies
 
-1. Python >= 3.7
+1. Python >= 3.9
 2. Docker
 3. NodeJS