chore: pin global turbo to 1.x release #29

Job	Run time
Determine jobs to run	28s
Turbopack TypeScript files	33s
Check next-swc	2m 26s
Turbopack rust check	1m 27s
Turbopack Rust testing on ubuntu	4m 7s
Turbopack rust clippy	1m 36s
Turbopack Rust testing on macos	33m 2s
Turbopack Rust testing on windows	34m 1s
Turbopack Rust testing benchmarks on linux / Test	2h 3m 15s
Turbopack Rust testing benchmarks on macos / Test	2h 18m 47s
Upload Test results	32s
Ok	4s
Done	4s
Cleanup / cleanup	2s
	5h 40m 24s

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