Update format-json-files.yml

.github/workflows/format-json-files.yml

@@ -21,7 +21,9 @@ 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@v3
+        with:
+          ref: ${{github.ref}}
 
       # Runs a single command using the runners shell
       - uses: actions/setup-node@v2