write permissions for packages

.github/workflows/build-docker.yml

@@ -8,6 +8,10 @@ on:
     branches:
       - "master"
 
+permissions:
+  contents: read
+  packages: write
+
 jobs:
   docker:
     runs-on: ubuntu-latest
@@ -39,7 +43,7 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
-          username: ${{ github.repository_owner }}
+          username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Build and push
         uses: docker/build-push-action@v5