Currently there are too many tests and they don't have a chance to complete within 3 days. As a result, no test on macos-11 have run.
https://github.com/sagemath/sage/runs/2051746258

Analysis:
https://groups.google.com/g/sage-release/c/KdSKg6RdZok/m/3Fkd7K1aAgAJ

Previous update: #30929

CC: @jhpalmieri @zlscherr @kliem

Component: porting

Author: Matthias Koeppe

Branch: 0d7946c

Reviewer: Jonathan Kliem

Issue created by migration from https://trac.sagemath.org/ticket/31492