build(deps): bump docker/build-push-action from 5 to 6

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5 to 6.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v5...v6)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/publish.yml

@@ -22,7 +22,7 @@ jobs:
  username: ${{ github.repository_owner }}
  password: ${{ secrets.GH_SRE_TOKEN }}
  - name: Build and export to Docker
- uses: docker/build-push-action@v5
+ uses: docker/build-push-action@v6
  with:
  context: .
  load: true
@@ -31,7 +31,7 @@ jobs:
  run: |
  docker run --rm ${{ env.TEST_TAG }} peephole -h
  - name: Build and push Docker Image
- uses: docker/build-push-action@v5
+ uses: docker/build-push-action@v6
  with:
  context: .
  tags: ${{ env.NEW_TAG }}, ${{ env.LATEST_TAG }}

.github/workflows/test.yml

@@ -39,7 +39,7 @@ jobs:
  registry: ghcr.io
  username: ${{ github.repository_owner }}
  password: ${{ secrets.GH_SRE_TOKEN }}
- - uses: docker/build-push-action@v5
+ - uses: docker/build-push-action@v6
  with:
  context: .
  tags: ghcr.io/immobiliare/peephole:next