Replace WorkflowIdReusePolicy.TerminateExisting by WorkflowIdConflictPolicy #1029

Job	Run time
build-lint-test (3.10, macos-intel)	6m 42s
build-lint-test (3.10, macos-arm)	5m 48s
build-lint-test (3.10, ubuntu-latest)	5m 48s
build-lint-test (3.13, macos-arm)	6m 49s
build-lint-test (3.13, windows-latest)	12m 21s
build-lint-test (3.13, ubuntu-latest)	8m 25s
build-lint-test (3.13, macos-intel)	10m 6s
build-lint-test (3.10, windows-latest)	6m 33s
	1h 2m 32s

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