Update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/prerelease.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Clone repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0 # A non-shallow repository clone is required
       - name: Run PackSquash