chore(deps): update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/version.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           # pull all the branches and tags
           fetch-depth: 0