Ensure fetcher authorization delays support stop callbacks. #408

Job	Run time
pod-lib-lint (ios, Debug)	9m 23s
pod-lib-lint (ios, Debug)	9m 23s
pod-lib-lint (ios, Release)	12m 11s
pod-lib-lint (ios, Release)	8m 55s
pod-lib-lint (macos, Debug)	14m 57s
pod-lib-lint (macos, Debug)	14m 57s
pod-lib-lint (macos, Release)	15m 8s
pod-lib-lint (macos, Release)	15m 8s
pod-lib-lint (tvos, Debug)	8m 33s
pod-lib-lint (tvos, Debug)	8m 33s
pod-lib-lint (tvos, Release)	9m 39s
pod-lib-lint (tvos, Release)	9m 39s
pod-lib-lint (visionos, Debug)	11m 27s
pod-lib-lint (visionos, Debug)	11m 27s
pod-lib-lint (visionos, Release)	6m 48s
pod-lib-lint (visionos, Release)	18m 10s
pod-lib-lint (watchos --skip-tests, Debug)	2m 45s
pod-lib-lint (watchos --skip-tests, Debug)	2m 45s
pod-lib-lint (watchos --skip-tests, Release)	2m 56s
pod-lib-lint (watchos --skip-tests, Release)	2m 56s
	3h 15m 40s

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