chore: move repos to docker hub

.github/workflows/docker.yml

@@ -82,23 +82,18 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+      - name: Log in to Docker Hub
+        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a
         with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
 
-      - name: Lowercase REPO
-        run: |
-          echo "REPO=${GITHUB_REPOSITORY,,}" >>${GITHUB_ENV}
-        
       - name: Build and push Docker image
         uses: docker/build-push-action@v4
         with:
           context: .
           file: Dockerfile
           push: true
-          tags: ghcr.io/${{ env.REPO }}/godot:${{ matrix.godot_version }}
+          tags: rivetgg/godot:${{ matrix.godot_version }}
           build-args: |
             GODOT_VERSION=${{ matrix.godot_version }}