chore(build): use multiarch dir when available

[geyslan]

1. Explain what the PR does

b061915 chore(build): use multiarch dir when available

2. Explain how to test it

3. Other comments

[Copilot]

Pull Request Overview

This PR adds a new composite GitHub Action to automatically create missing header symlinks and invokes it in CI.

• Introduce a fix-headers action to symlink missing asm/errno.h from asm-generic
• Insert Fix Headers step after dependencies installation in multiple CI jobs

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
.github/workflows/pr.yaml	Added - name: Fix Headers step that uses the new action in each job
.github/actions/fix-headers/action.yaml	New composite action creating symlinks for missing asm headers

Comments suppressed due to low confidence (3)

.github/workflows/pr.yaml:110

• This step runs unconditionally; on non-Linux runners it will fail due to missing /usr/include paths. Add if: runner.os == 'Linux' to guard execution.

      - name: Fix Headers

.github/workflows/pr.yaml:110

• [nitpick] The Fix Headers step is duplicated across multiple jobs. Consider using YAML anchors or a reusable workflow to DRY up this configuration.

      - name: Fix Headers

.github/actions/fix-headers/action.yaml:11

• Before creating symlinks, verify that the source directory /usr/include/asm-generic exists to avoid errors if it's missing.

        if [ ! -f /usr/include/asm/errno.h ]; then

[yanivagman]

lgtm

[geyslan]

/fast-forward