chore: fix docker context

.github/workflows/build-dockerfile.yml

@@ -1,5 +1,3 @@
-name: Build
-
 on:
   push:
     branches:
@@ -8,15 +6,14 @@ on:
       - beta
       - tnordquist/test-ci
     paths:
-      - ./docker
+      - Dockerfile
       - .github
 
 jobs:
   create-image:
     runs-on: ubuntu-latest
     steps:
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+      - uses: actions/checkout@v4
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Login to Docker Hub
@@ -29,6 +26,5 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
-          file: ./Dockerfile
           push: true
-          tags: thomasnordquist/mqtt-explorer-ui-tests:latest
+          tags: ghcr.io/thomasnordquist/mqtt-explorer-ui-tests:latest