fix(gha): fix test build containers on pull requests actions (#6909)

.github/workflows/ui-pull-request.yml

@@ -6,6 +6,7 @@ on:
       - "master"
       - "v5.*"
     paths:
+      - ".github/workflows/ui-pull-request.yml"
       - "ui/**"
   pull_request:
     branches:
@@ -45,6 +46,7 @@ jobs:
   test-container-build:
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/checkout@v4
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Build Container