PR-checker - use actions/checkout v4 for scripts-int.

Based on review feedback from Jenia.

.github/workflows/pr-checker.yml

@@ -18,11 +18,12 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: '3.9'
-      - name: Set GitHub access token via git config
-        run: | 
-          git config --global url."https://${{ secrets.ACCESS_TOKEN }}@github.com/".insteadOf "[email protected]:"
-          git config --global url."https://${{ secrets.ACCESS_TOKEN }}@github".insteadOf "https://github"
-      - run: git clone [email protected]:PelionIoT/scripts-internal.git
+
+      - name: Clone scripts-internal
+        uses: actions/checkout@v4
+        with:
+          repository: https://github.com/PelionIoT/scripts-internal
+          token: ${{ secrets.ACCESS_TOKEN }}
 
       # Need to run this 1st, so that the other log files do not cause unnecessary findings
       - name: Run misspell
@@ -94,4 +95,4 @@ jobs:
           if [ "$TEST_FAIL" = "true" ]; then
             echo "Some test has failed, fail the job."
             exit 1  # You can choose to exit with success (0) to mark this step as successful but skipped.
-          fi
+          fi