build(deps): bump docker/build-push-action from 6 to 7 (#168)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6 to 7.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v6...v7)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build.yaml

@@ -84,7 +84,7 @@ jobs:
 
       - name: Build and push OCI amd64 image
         if: github.event_name != 'pull_request'
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -111,7 +111,7 @@ jobs:
 
       - name: Build and push OCI arm64 image
         if: github.event_name != 'pull_request'
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -138,7 +138,7 @@ jobs:
 
       - name: Build and push OCI ppc64le image
         if: github.event_name != 'pull_request'
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -165,7 +165,7 @@ jobs:
 
       - name: Build and push OCI s390x image
         if: github.event_name != 'pull_request'
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}