EVEREST-1512 | Allow running upgrade CLI using in-cluster config #2679

Job	Run time
API Integration Tests (1.23.x, false)	16m 54s
CLI Integration Tests (1.23.x, false)	8m 33s
Check (1.23.x, false)	1m 26s
Test (1.23.x, false)	7m 39s
CLI tests (test-mongo-operator) / CLI test-mongo-operator	8m 59s
CLI tests (test-all-operators) / CLI test-all-operators	11m 50s
CLI tests (test-pg-operator) / CLI test-pg-operator	11m 34s
CLI tests (test-pxc-operator) / CLI test-pxc-operator	9m 46s
Merge Gatekeeper	17s
	1h 16m 58s

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