ci: cherrypick improvements from `next`#2040

Merged

Mirko-von-Leipzig merged 4 commits into

mainfrom

mirko/port-ci-main

May 4, 2026

Commits on May 4, 2026

ci: add shear, workspace inheritance, and zizmor checks, and move heavy GitHub Actions jobs to WarpBuild (#2013)

huitseeker
authored and
Mirko von Leipzig
committed
ci: install toolchain properly (#2026)

Mirko-von-Leipzig
authored and
Mirko von Leipzig
committed
ci: cache each job (#2025)
Mirko-von-Leipzig
committed
Merge branch 'main' into mirko/port-ci-main
Mirko-von-Leipzig
authored