ci(deps): bump docker/build-push-action from 6.19.2 to 7.1.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.19.2 to 7.1.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@10e90e3...bcafcac)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-version: 7.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/_docker-pipeline.yml

@@ -111,7 +111,7 @@ jobs:
       # Loads image into the local Docker daemon without pushing.
       # Writes all layers to the GHA cache so the push step is just an upload.
       - name: 🔨 Build (load for testing)
-        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6.19.2
+        uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7.1.0
         with:
           # zizmor: ignore[template-injection] — safe: always hardcoded "." from same-repo callers; passed as array element to exec, not shell-interpolated
           context: ${{ inputs.context }}
@@ -165,7 +165,7 @@ jobs:
       # All layers are in the GHA cache from step 1 — this is just an upload.
       - name: 🚀 Push to registries
         if: inputs.push
-        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6.19.2
+        uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7.1.0
         with:
           # zizmor: ignore[template-injection] — safe: always hardcoded "." from same-repo callers; passed as array element to exec, not shell-interpolated
           context: ${{ inputs.context }}