correct yaml

Author: RossBugginsNHS

.github/workflows/docs-cicd-1-pull-request.yaml

@@ -22,6 +22,8 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 1
     steps:
+    - name: "Checkout code"
+      uses: actions/checkout@v5
     - uses: dorny/paths-filter@v3
       id: changes
       with: