use slightly larger macos runner (#1233) #2098

Job	Run time
analyze	2m 30s
Build on windows-latest for repo global.json	12m 31s
Build on windows-latest for 6.0	12m 2s
Build on windows-latest for 7.0	12m 26s
Build on windows-latest for 8.0	12m 40s
Build on macos-13 for repo global.json	14m 9s
Build on macos-13 for 6.0	12m 51s
Build on macos-13 for 7.0	13m 46s
Build on macos-13 for 8.0	15m 49s
Build on ubuntu-latest for repo global.json	9m 39s
Build on ubuntu-latest for 6.0	11m 27s
Build on ubuntu-latest for 7.0	10m 3s
Build on ubuntu-latest for 8.0	10m 30s
	2h 30m 23s

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