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

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](https://github.com/docker/build-push-action/compare/v6...v7)

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

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

.github/workflows/build.yml

@@ -147,7 +147,7 @@ jobs:
         uses: docker/setup-qemu-action@v4.1.0
 
       - name: Build for test
-        uses: docker/build-push-action@v7.2.0
+        uses: docker/build-push-action@v7
         with:
           platforms: linux/amd64
           tags: ${{ env.IMAGE_TO_TEST }}
@@ -187,7 +187,7 @@ jobs:
           password: ${{ github.token }}
 
       - name: Build and push
-        uses: docker/build-push-action@v7.2.0
+        uses: docker/build-push-action@v7
         if: github.actor == github.repository_owner
         with:
           platforms: ${{ matrix.platforms }}

.github/workflows/verify-docs.yml

@@ -19,7 +19,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Build docs image
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           file: docs/Dockerfile

.github/workflows/verify-pr.yml

@@ -62,7 +62,7 @@ jobs:
         uses: docker/setup-buildx-action@v4.1.0
 
       - name: Confirm multi-arch build
-        uses: docker/build-push-action@v7.2.0
+        uses: docker/build-push-action@v7
         with:
           platforms: ${{ matrix.platforms }}
           # ensure latest base image is used
@@ -73,7 +73,7 @@ jobs:
           cache-from: type=gha,scope=${{ matrix.variant }}
 
       - name: Build for test
-        uses: docker/build-push-action@v7.2.0
+        uses: docker/build-push-action@v7
         with:
           # Only build single platform since loading multi-arch image into daemon fails with
           # "docker exporter does not currently support exporting manifest lists"