Refactor MonitorResourceUtil to support ExecutionTime metric in synth… #7369

Job	Run time
compile-api-reference	50s
compile-accounts	51s
compile-app	57s
compile-common	1m 15s
compile-copilot	52s
compile-docs-reference	51s
compile-home	49s
compile-isolated-vm	46s
compile-worker	58s
compile-workflow	53s
compile-admin-dashboard	1m 12s
compile-dashboard	1m 35s
compile-e2e	1m 22s
compile-infrastructure-agent	24s
compile-ingestor	55s
compile-nginx	47s
compile-probe	50s
compile-status-page	55s
compile-test-server	50s
	17m 52s

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