feat(catalog): add E2E tests and Kustomize overlay for Python client #6306

Job	Run time
Check autogenerated code is in sync (3.12, 20)	39s
lint	20s
docs-build	49s
mypy	38s
E2E Py 3.12 K8s v1.33.7 DB db	5m 23s
E2E Py 3.12 K8s v1.33.7 DB postgres	4m 52s
E2E Py 3.10 K8s v1.33.7 DB db	5m 34s
E2E Py 3.11 K8s v1.33.7 DB db	5m 16s
	23m 31s

Provide feedback