add coverage for phase2 synchronizer #348

Job	Run time
component-tests (TestSynchronizer_TC01_InCluster)	4m 59s
component-tests (TestSynchronizer_TC01_Backend)	4m 17s
component-tests (TestSynchronizer_TC02_InCluster)	4m 36s
component-tests (TestSynchronizer_TC02_Backend)	4m 25s
component-tests (TestSynchronizer_TC04_InCluster)	4m 25s
component-tests (TestSynchronizer_TC04_Backend)	4m 24s
component-tests (TestSynchronizer_TC05_InCluster)	4m 37s
component-tests (TestSynchronizer_TC05_Backend)	4m 26s
component-tests (TestSynchronizer_TC06)	4m 43s
component-tests (TestSynchronizer_TC07)	4m 42s
component-tests (TestSynchronizer_TC08)	4m 53s
component-tests (TestSynchronizer_TC09)	5m 14s
component-tests (TestSynchronizer_TC10)	4m 27s
component-tests (TestSynchronizer_TC11)	4m 51s
component-tests (TestSynchronizer_TC12)	4m 50s
component-tests (TestSynchronizer_TC13_HTTPEndpoint)	4m 8s
pr-created / test / check if secrets are set	1s
pr-created / test / Create cross-platform build	2m 42s
pr-created / test / Basic-Test	2m 39s
	1h 19m 19s

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