Fix up the Taskcluster / Taskgraph configuration #2964

Job	Run time
Build & test (ubuntu-latest, 1.76.0, debug)	13m 3s
Build & test (ubuntu-latest, 1.76.0, debug)	13m 3s
Build & test (ubuntu-latest, stable, debug)	12m 51s
Build & test (ubuntu-latest, stable, debug)	12m 51s
Build & test (ubuntu-latest, nightly, debug)	12m 26s
Build & test (ubuntu-latest, nightly, debug)	12m 26s
Build & test (macos-14, 1.76.0, debug)	23m 40s
Build & test (macos-14, 1.76.0, debug)	36m 5s
Build & test (macos-14, stable, debug)	23m 54s
Build & test (macos-14, stable, debug)	12m 14s
Build & test (macos-14, nightly, debug)	25m 7s
Build & test (macos-14, nightly, debug)	25m 7s
Build & test (windows-latest, 1.76.0, debug)	22m 21s
Build & test (windows-latest, 1.76.0, debug)	22m 21s
Build & test (windows-latest, stable, debug)	23m 1s
Build & test (windows-latest, stable, debug)	23m 1s
Build & test (windows-latest, nightly, debug)	24m 44s
Build & test (windows-latest, nightly, debug)	24m 44s
Build & test (ubuntu-latest, stable, release)	17m 58s
Build & test (ubuntu-latest, stable, release)	17m 58s
Benchmark	0s
Benchmark / Benchmark	18m 2s
	6h 56m 57s

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