Merge the "chore/update-build-push-action-v7" branch into the "develop" branch

This merge updates the GitHub Actions workflows to use `docker/build-push-action@v7` instead of the current older major versions. It applies the version bump in both `.github/workflows/deployment.yml` and `.github/workflows/pr-tests.yml` while keeping the existing build, attestation, cache, and artifact logic unchanged.

In `.github/workflows/deployment.yml`, the `Build and push (multi-registry, multi-platform)` step is updated from `uses: docker/build-push-action@v5` to `uses: docker/build-push-action@v7` without changing the existing `attests:`, tag, label, platform, or cache settings. In `.github/workflows/pr-tests.yml`, the `Build Image` step is updated from `uses: docker/build-push-action@v6` to `uses: docker/build-push-action@v7` without changing the existing OCI archive output, multi-platform build, tag, or cache configuration.

No other files or workflow jobs are modified by this merge.

Author: Amnoor

.github/workflows/deployment.yml

@@ -115,7 +115,7 @@ jobs:
       # Build the multi-platform container image and push it to both registries.
       # BuildKit is used to generate SBOM and provenance metadata.
       - name: Build and push (multi-registry, multi-platform)
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v7
         with:
           context: .
           push: true

.github/workflows/pr-tests.yml

@@ -59,7 +59,7 @@ jobs:
 
       # Build the Docker image and load it locally
       - name: Build Image
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           platforms: linux/amd64,linux/arm64