Replace WorkflowIdReusePolicy.TerminateExisting by WorkflowIdConflict… #1101

Job	Run time
build-lint-test (3.14, macos-arm)	10m 10s
build-lint-test (3.10, macos-arm)	7m 54s
build-lint-test (3.14, ubuntu-latest)	15m 8s
build-lint-test (3.14, macos-intel)	16m 28s
build-lint-test (3.14, windows-latest)	18m 40s
build-lint-test (3.10, ubuntu-latest)	5m 53s
build-lint-test (3.10, windows-latest)	6m 35s
build-lint-test (3.10, macos-intel)	10m 10s
	1h 30m 58s

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