Bump shrink/actions-docker-extract from 2.0.0 to 2.1.0

Bumps [shrink/actions-docker-extract](https://github.com/shrink/actions-docker-extract) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/shrink/actions-docker-extract/releases)
- [Commits](shrink/actions-docker-extract@v2.0.0...v2.1.0)

---
updated-dependencies:
- dependency-name: shrink/actions-docker-extract
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/release.yml

@@ -43,7 +43,7 @@ jobs:
     - name: Extract kind2 Linux binary
       if: runner.os == 'Linux'
       id: extract
-      uses: shrink/actions-docker-extract@v2.0.0
+      uses: shrink/actions-docker-extract@v2.1.0
       with:
         image: kind2/kind2:dev
         path: /kind2