Update blank.yml

Author: Ella-0

.github/workflows/blank.yml

@@ -27,7 +27,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Install deps
         run: |