added ghcr token and took out useless stuff

Author: thogue12

.github/workflows/push-docker-image.yml

@@ -27,12 +27,6 @@ jobs:
         with:
           cosign-release: 'v2.2.4'
 
-      # Set up BuildKit Docker container builder to be able to build
-      # multi-platform images and export cache
-      # https://github.com/docker/setup-buildx-action
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
-
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action
       - name: Log into registry ${{ env.REGISTRY }}
@@ -41,7 +35,7 @@ jobs:
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          password: ${{ secrets.GHCR_TOKEN }}
 
       # Extract metadata (tags, labels) for Docker
       # https://github.com/docker/metadata-action