ENH Add workflow permissions

.github/workflows/dispatch-ci.yml

@@ -5,12 +5,17 @@ on:
   schedule:
     - cron: '20 11 * * 2,3'
 
+permissions: {}
+
 jobs:
   dispatch-ci:
     name: Dispatch CI
     # Only run cron on the silverstripe account
     if: (github.event_name == 'schedule' && github.repository_owner == 'silverstripe') || (github.event_name != 'schedule')
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      actions: write
     steps:
       - name: Dispatch CI
         uses: silverstripe/gha-dispatch-ci@v1

.github/workflows/keepalive.yml

@@ -6,12 +6,16 @@ on:
     - cron: '30 6 11 * *'
   workflow_dispatch:
 
+permissions: {}
+
 jobs:
   keepalive:
     name: Keepalive
     # Only run cron on the silverstripe account
     if: (github.event_name == 'schedule' && github.repository_owner == 'silverstripe') || (github.event_name != 'schedule')
     runs-on: ubuntu-latest
+    permissions:
+      actions: write
     steps:
       - name: Keepalive
         uses: silverstripe/gha-keepalive@v1

.github/workflows/merge-up.yml

@@ -6,12 +6,18 @@ on:
     - cron: '20 11 * * 6'
   workflow_dispatch:
 
+permissions: {}
+
 jobs:
   merge-up:
     name: Merge-up
     # Only run cron on the silverstripe account
     if: (github.event_name == 'schedule' && github.repository_owner == 'silverstripe') || (github.event_name != 'schedule')
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      actions: write
+      pull-requests: write
     steps:
       - name: Merge-up
         uses: silverstripe/gha-merge-up@v1

.github/workflows/update-js.yml

@@ -6,6 +6,8 @@ on:
   schedule:
     - cron: '30 6 1 */3 *'
 
+permissions: {}
+
 jobs:
   update-js:
     name: Update JS