Add end to end tests to apiserver #3979

Job	Run time
Build Apiserver, CLI Binaries and Docker Images	5m 45s
Python Client Test	1m 45s
Build Operator Binaries and Docker Images	7m 50s
Lint	2m 40s
Compatibility Test - 2.6.3	15m 1s
Compatibility Test - 2.5.0	13m 2s
Compatibility Test - 1.13.0	9m 58s
Compatibility Test - 2.4.0	16m 18s
Compatibility Test - 2.7.0	19m 10s
Compatibility Test - Nightly	14m 18s
	1h 45m 47s

Provide feedback