update build-push-action to v6

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

Author: crazy-max

README.md

@@ -92,7 +92,7 @@ jobs:
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -152,7 +152,7 @@ jobs:
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -333,7 +333,7 @@ Alternatively, each output is also exported as an environment variable:
 So it can be used with our [Docker Build Push action](https://github.com/docker/build-push-action/):
 
 ```yaml
-- uses: docker/build-push-action@v5
+- uses: docker/build-push-action@v6
   with:
     build-args: |
       DOCKER_METADATA_OUTPUT_JSON
@@ -925,7 +925,7 @@ that you can reuse them further in your workflow using the [`fromJSON` function]
           images: name/app
       -
         name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
@@ -972,7 +972,7 @@ of the `metadata-action`:
           images: name/app
       -
         name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           tags: ${{ steps.meta.outputs.tags }}
           annotations: ${{ steps.meta.outputs.annotations }}
@@ -1019,7 +1019,7 @@ Please consult the documentation of your registry.
           DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
       -
         name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           tags: ${{ steps.meta.outputs.tags }}
           annotations: ${{ steps.meta.outputs.annotations }}