Update Docker build context and Dockerfile path

Author: MarijaJoo

.github/workflows/github-actions.yml

@@ -20,6 +20,7 @@ jobs:
       - name: Build and push Docker image
         uses: docker/build-push-action@v5
         with:
-          context: ./Is.Web
+          context: .
+          file: ./Is.Web/Dockerfile
           push: true
           tags: macccy/iss-web:latest