CompatHelper.yml: update

use v1 of setup-julia

Author: alyst

.github/workflows/CompatHelper.yml

@@ -1,17 +1,20 @@
 name: CompatHelper
-
 on:
   schedule:
-    - cron: '00 00 * * *'
-
+    - cron: 0 0 * * *
+  workflow_dispatch:
+permissions:
+  contents: write
+  pull-requests: write
 jobs:
   CompatHelper:
     runs-on: ubuntu-latest
     steps:
-      - uses: julia-actions/setup-julia@latest
+      - name: Install Julia, but only if it is not already available in the PATH
+        uses: julia-actions/setup-julia@v1
         with:
-          version: 1.3
-      - name: Pkg.add("CompatHelper")
+          version: 1
+      - name: "Install CompatHelper"
         run: julia -e 'using Pkg; Pkg.add("CompatHelper")'
       - name: CompatHelper.main()
         env: