fix: docker context

Author: heycarl

.github/workflows/build.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Build and push Docker image
         uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
         with:
-          context: .
+          context: ./docker
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}