Update docker/build-push-action to version 6

Author: frenzymadness

.github/workflows/build-and-push.yml

@@ -37,7 +37,7 @@ jobs:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
       - name: Build
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v6
         with:
           context: .
           platforms: linux/${{ matrix.arch }}