Bump reproducible-containers/buildkit-cache-dance from 3.1.2 to 3.2.0

Bumps [reproducible-containers/buildkit-cache-dance](https://github.com/reproducible-containers/buildkit-cache-dance) from 3.1.2 to 3.2.0.
- [Release notes](https://github.com/reproducible-containers/buildkit-cache-dance/releases)
- [Commits](reproducible-containers/buildkit-cache-dance@v3.1.2...v3.2.0)

---
updated-dependencies:
- dependency-name: reproducible-containers/buildkit-cache-dance
  dependency-version: 3.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -200,7 +200,7 @@ jobs:
           key: cargo-cache-${{ steps.cal-dep-shasum.outputs.checksum }}
 
       - name: Inject cache into docker
-        uses: reproducible-containers/buildkit-cache-dance@v3.1.2
+        uses: reproducible-containers/buildkit-cache-dance@v3.2.0
         with:
           cache-map: |
             {