build(deps): bump docker/build-push-action from 3.1.1 to 3.2.0 (#5389)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3.1.1 to 3.2.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v3.1.1...v3.2.0)

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

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

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

.github/workflows/build-docker-image.yml

@@ -124,7 +124,7 @@ jobs:
       # Build and push image to Google Artifact Registry, and possibly DockerHub
       - name: Build & push
         id: docker_build
-        uses: docker/build-push-action@v3.1.1
+        uses: docker/build-push-action@v3.2.0
         with:
           target: ${{ inputs.dockerfile_target }}
           context: .

.github/workflows/zcash-lightwalletd.yml

@@ -116,7 +116,7 @@ jobs:
       # Build and push image to Google Artifact Registry
       - name: Build & push
         id: docker_build
-        uses: docker/build-push-action@v3.1.1
+        uses: docker/build-push-action@v3.2.0
         with:
           target: build
           context: .