Run update.sh on PR and on cron.

Signed-off-by: pierreozoux <pierre@ozoux.net>

.github/workflows/update-sh.yml

@@ -1,22 +1,28 @@
 name: update.sh
 
 on:
-  pull_request:
-
-defaults:
-  run:
-    shell: 'bash -Eeuo pipefail -x {0}'
+  push:
+    branches:
+    - master
+  schedule:
+  - cron:  '15 0 * * *'
 
 jobs:
-
-  check-changes:
-    name: Check for Changes
+  run_update_sh:
+    name: Run update.sh script
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - name: Check for Changes
-        run: |
-          hash_before="$(git write-tree)"
-          ./update.sh
-          git add -A
-          [[ "$hash_before" = "$(git write-tree)" ]]
+    - uses: actions/checkout@v2
+    - name: Run update.sh script
+      run: ./update.sh
+    - name: Commit files
+      run: |
+        git config --local user.email "workflow@github.com"
+        git config --local user.name "GitHub Workflow"
+        git add ./*
+        git commit -m "Runs update.sh"
+    - name: Push changes
+      uses: ad-m/github-push-action@master
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        force: true