chore(deps): update docker/build-push-action digest to ee4ca42

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

Author: renovate[bot]

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Build test image
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
+        uses: docker/build-push-action@ee4ca427a2f43b6a16632044ca514c076267da23 # v6
         with:
           context: .
           push: false
@@ -75,7 +75,7 @@ jobs:
             type=ref,event=pr
             type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }}
       - name: Build images
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
+        uses: docker/build-push-action@ee4ca427a2f43b6a16632044ca514c076267da23 # v6
         with:
           context: .
           platforms: linux/amd64,linux/arm64