Update .github/workflows/job-docker-build.yml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Vamshi-Microsoft

.github/workflows/job-docker-build.yml

@@ -63,8 +63,8 @@ jobs:
         env:
           DOCKER_BUILD_SUMMARY: false
         with:
-          context: ./content-gen/src
-          file: ./content-gen/src/WebApp.Dockerfile
+          context: ./content-gen/src/app
+          file: ./content-gen/src/app/WebApp.Dockerfile
           push: true
           tags: |
             ${{ secrets.ACR_TEST_LOGIN_SERVER }}/webapp:${{ steps.generate_docker_tag.outputs.IMAGE_TAG }}