Bump uraimo/run-on-arch-action from 2.7.2 to 2.8.1

Bumps [uraimo/run-on-arch-action](https://github.com/uraimo/run-on-arch-action) from 2.7.2 to 2.8.1.
- [Release notes](https://github.com/uraimo/run-on-arch-action/releases)
- [Commits](uraimo/run-on-arch-action@v2.7.2...v2.8.1)

---
updated-dependencies:
- dependency-name: uraimo/run-on-arch-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/build-debian-multiarch.yml

@@ -68,7 +68,7 @@ jobs:
     - uses: actions/[email protected]
 
     - name: Build sources and run tests
-      uses: uraimo/run-on-arch-action@v2.7.2
+      uses: uraimo/run-on-arch-action@v2.8.1
       id: build
       with:
         arch: ${{ matrix.base_image && 'none' || matrix.arch }}
@@ -136,7 +136,7 @@ jobs:
         done
 
     - name: Test armv7 wheel on armv6
-      uses: uraimo/run-on-arch-action@v2.7.2
+      uses: uraimo/run-on-arch-action@v2.8.1
       with:
         arch: armv6
         distro: bookworm