chore(ci): fix permissions for actions runner

Author: tychoish

.github/workflows/test.yml

@@ -8,12 +8,16 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     strategy:
       fail-fast: false
       matrix:
         emacs_version:
           - "29.4"
           - "30.2"
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
     steps:
       - uses: actions/checkout@v5