Upgrade actions/checkout from v4 to v6

Updated checkout action version from v4 to v6.

Author: aegilops

.github/workflows/lint_win.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
       # install dependencies for all linters, then run the linter, so we don't get import failures when the linters scan the code
       # upgrade pip, so that we can install flake8_sarif_formatter properly from the git repo
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install pip dependencies
         run: |
           python3 -mpip install -q --upgrade pip