ci: use composite checkout

.github/workflows/compliance.yml

@@ -12,12 +12,12 @@ jobs:
         echo "$HOME/.local/bin" >> $GITHUB_PATH
 
     - name: Checkout the code
-      uses: actions/checkout@v3
-      with:
-        path: ncs/nrf
-        ref: ${{ github.event.pull_request.head.sha }}
-        fetch-depth: 0
-
+      uses: karhama/action-checkout@main
+        with:
+         fetch_depth: 0
+         git_ref: ${{ github.event.pull_request.head.sha }}
+         west_update_params: '--narrow -o=--depth=1'
+          
     - name: cache-pip
       uses: actions/cache@v3
       with:
@@ -39,8 +39,6 @@ jobs:
         BASE_REF: ${{ github.base_ref }}
       working-directory: ncs/nrf
       run: |
-        git config --global user.email "you@example.com"
-        git config --global user.name "Your Name"
         git remote -v
         # Ensure there's no merge commits in the PR
         [[ "$(git rev-list --merges --count origin/${BASE_REF}..)" == "0" ]] || \
@@ -49,8 +47,6 @@ jobs:
         git rebase origin/${BASE_REF}
         # debug
         git log  --pretty=oneline | head -n 10
-        west init -l .
-        west update --narrow -o=--depth=1
 
     - name: Run CODEOWNERS test
       id: codeowners