[CI] Update cleanup-cache action (#20788)

.github/workflows/cleanup-cache.yml

@@ -8,17 +8,12 @@ jobs:
   cleanup:
     runs-on: ubuntu-latest
     steps:
-      - name: Check out code
-        uses: actions/checkout@v3
       - name: Cleanup
         run: |
           gh extension install actions/gh-actions-cache
 
-          REPO=${{ github.repository }}
-          BRANCH="refs/pull/${{ github.event.pull_request.number }}/merge"
-
           echo "Fetching list of cache key"
-          cacheKeysForPR=$(gh actions-cache list -R $REPO -B $BRANCH | cut -f 1 )
+          cacheKeysForPR=$(gh actions-cache list -R $REPO -B $BRANCH -L 100 | cut -f 1 )
 
           ## Setting this to not fail the workflow while deleting cache keys.
           set +e
@@ -30,4 +25,5 @@ jobs:
           echo "Done"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
+          REPO: ${{ github.repository }}
+          BRANCH: refs/pull/${{ github.event.pull_request.number }}/merge