Bump once_cell from 1.20.1 to 1.20.2 #8236

Job	Run time
build-linux-arm (nightly)	15m 11s
build-apple-x86 (nightly)	4m 50s
build-linux-arm (stable)	15m 27s
build-linux-musl (nightly)	8m 6s
build-apple-x86 (stable)	4m 13s
build (ubuntu-latest, nightly)	6m 45s
build-linux-musl (stable)	7m 36s
build-linux-arm (1.70)	16m 6s
build-apple-x86 (1.70)	4m 35s
build (ubuntu-latest, stable)	6m 41s
build-linux-musl (1.70)	7m 44s
build (ubuntu-latest, 1.70)	7m 0s
build (macos-latest, nightly)	5m 20s
Lints	40s
Changelog Test	3s
build (macos-latest, stable)	6m 31s
udeps	2m 21s
build (macos-latest, 1.70)	6m 22s
build (windows-latest, nightly)	28m 0s
build (windows-latest, stable)	25m 4s
build (windows-latest, 1.70)	28m 35s
	3h 27m 10s

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