ci: reduce audit to weekly #376

Job	Run time
sync	51s
build (ubuntu-latest, 1.63.0)	3m 9s
build (ubuntu-latest, stable)	1m 55s
build (ubuntu-latest, beta)	1m 53s
build (ubuntu-latest, nightly)	1m 48s
build (macos-latest, 1.63.0)	2m 15s
build (macos-latest, stable)	1m 37s
build (macos-latest, beta)	1m 20s
build (macos-latest, nightly)	1m 29s
build (windows-latest, 1.63.0)	4m 29s
build (windows-latest, stable)	3m 13s
build (windows-latest, beta)	2m 50s
build (windows-latest, nightly)	2m 38s
	29m 27s

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