ci: Revert aarch64-linux timeout to GitHub's default 6 hours.
We don't seem to be getting non-deterministic hangs since 4f3b59f, and e28b402
cut the run times significantly on top of that. Runs now seem to take around 1-2
hours, so the default timeout should be plenty.
1a08c83eb3Alex Rønne Petersen committed on 5/30/2025, 9:59:33 AMparent561ab59