chore(deps): update docker/build-push-action digest to b32b51a in .github/workflows/testing-env-image.yml (main) (#5225)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/atlantis-image.yml

@@ -146,7 +146,7 @@ jobs:
     - name: "Build ${{ env.PUSH == 'true' && 'and push' || '' }} ${{ env.DOCKER_REPO }} image"
       id: build
       if: contains(fromJson('["push", "pull_request"]'), github.event_name)
-      uses: docker/build-push-action@48aba3b46d1b1fec4febb7c5d0c644b249a11355 # v6
+      uses: docker/build-push-action@b32b51a8eda65d6793cd0494a773d4f6bcef32dc # v6
       with:
         cache-from: type=gha
         cache-to: type=gha,mode=max
@@ -213,7 +213,7 @@ jobs:
 
       - name: "Build and load into Docker"
         if: contains(fromJson('["push", "pull_request"]'), github.event_name)
-        uses: docker/build-push-action@48aba3b46d1b1fec4febb7c5d0c644b249a11355 # v6
+        uses: docker/build-push-action@b32b51a8eda65d6793cd0494a773d4f6bcef32dc # v6
         with:
           cache-from: type=gha
           cache-to: type=gha,mode=max

.github/workflows/testing-env-image.yml

@@ -60,7 +60,7 @@ jobs:
 
     - run: echo "TODAY=$(date +"%Y.%m.%d")" >> $GITHUB_ENV
     - name: Build and push testing-env:${{env.TODAY}} image
-      uses: docker/build-push-action@48aba3b46d1b1fec4febb7c5d0c644b249a11355 # v6
+      uses: docker/build-push-action@b32b51a8eda65d6793cd0494a773d4f6bcef32dc # v6
       with:
         cache-from: type=gha
         cache-to: type=gha,mode=max