update settings for caching docker layers

.github/workflows/release.yml

@@ -104,8 +104,9 @@ jobs:
       uses: actions/cache@v2
       with:
         path: /tmp/.buildx-cache
-        key: ${{ runner.os }}-buildx-app-${{ github.sha }}
+        key: ${{ runner.os }}-buildx-app-${{ matrix.flavor }}-${{ github.sha }}
         restore-keys: |
+          ${{ runner.os }}-buildx-app-${{ matrix.flavor }}-
           ${{ runner.os }}-buildx-app-
 
     - name: Build and push