fix: update secret name

Author: hrhv

.github/workflows/docker-build.yml

@@ -30,7 +30,7 @@ jobs:
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          password: ${{ secrets.ACTIONS_TOKEN }}
 
       - name: Extract metadata (tags, labels)
         id: meta