merge PR #1 from dependabot/actions/stale-4

Bump actions/stale from 3 to 4

Author: irongut

.github/workflows/mark-stale.yml

@@ -11,7 +11,7 @@ jobs:
 
     steps:
     - name: Mark Stale
-      uses: actions/stale@v3
+      uses: actions/stale@v4
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
         exempt-all-milestones: true