use pat secret in repo

.github/workflows/docker.yml

@@ -46,13 +46,6 @@ jobs:
           tags: |
             latest
 
-      - name: Generate app token
-        id: app_token
-        uses: tibdex/github-app-token@v1
-        with:
-          app_id: ${{ secrets.HUB_PLATFORM_APP_ID }}
-          private_key: ${{ secrets.HUB_PLATFORM_APP_PRIVATE_KEY }}
-
       # Build and push Docker image with Buildx (don't push on PR)
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
@@ -65,4 +58,4 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           secrets: |
-            "gitghatoken=${{ steps.app_token.outputs.token }}"
+            "gitghatoken=${{ secrets.GHA_REPO_TOKEN }}"