Improvement for flow-visibility e2e test #30115

Job	Run time
Check whether tests need to be run based on diff	19s
Verify docs and spelling	40s
Golangci-lint (ubuntu-latest)	7m 29s
Integration test	10m 42s
Unit test (ubuntu-latest)	6m 9s
Go benchmark test	4m 27s
Unit test (windows-2022)	10m 15s
Build Antrea and antctl binaries	9m 43s
Golangci-lint (macos-latest)	8m 13s
Check tidy, code generation and manifest	5m 52s
Build Antrea Windows binaries	1m 58s
	1h 5m 47s

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