Patryk-KuchtaandClaude Opus 5
9c597cbc80
pnpm/action-setup's self-installer fails on Node 24 ("Running
self-installer..." exits 1), breaking both workflows. Use corepack
instead, which picks up the pnpm version from the packageManager field
and matches how the Dockerfile installs it.
Also move upload-artifact to v4, since v3 is retired.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>