chore(action): change to .art (#3)

.github/workflows/docker.yml

@@ -5,9 +5,15 @@ on:
     types: [published]
   workflow_dispatch:
 
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+    
 jobs:
   push_to_registry:
     name: Push Docker image to Docker Hub
+    permissions:
+      packages: write
     runs-on: ubuntu-latest
 
     steps:
@@ -22,7 +28,7 @@ jobs:
         id: meta
         uses: docker/metadata-action@v4
         with:
-          images: misskey/misskey
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
             type=edge
             type=ref,event=pr
@@ -30,11 +36,13 @@ jobs:
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
             type=semver,pattern={{major}}
-      - name: Log in to Docker Hub
+      - name: Log in to the Container registry
         uses: docker/login-action@v2
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Build and Push to Docker Hub
         uses: docker/build-push-action@v4
         with: