chore(deps): update docker/build-push-action action to v6.8.0

Author: renovate[bot]

.github/workflows/on-dev.yml

@@ -64,7 +64,7 @@ jobs:
 
       - name: Build and push Docker image
         id: push
-        uses: docker/build-push-action@v6.7.0
+        uses: docker/build-push-action@v6.8.0
         with:
           context: .
           file: ./Dockerfile

.github/workflows/on-release.yml

@@ -33,7 +33,7 @@ jobs:
 
       - name: Build and push Docker image
         id: push
-        uses: docker/build-push-action@v6.7.0
+        uses: docker/build-push-action@v6.8.0
         with:
           context: .
           file: ./Dockerfile

.github/workflows/on-tag.yml

@@ -34,7 +34,7 @@ jobs:
 
       - name: Build and push Docker image
         id: push
-        uses: docker/build-push-action@v6.7.0
+        uses: docker/build-push-action@v6.8.0
         with:
           context: .
           file: ./Dockerfile