Explicitly set GitHub Actions permissions

Author: johnthagen

.github/workflows/ci.yml

@@ -2,6 +2,9 @@ name: CI
 
 on: [push, pull_request]
 
+permissions:
+  contents: read
+
 env:
   UV_VERSION: "0.9.21"
 

.github/workflows/pages.yml

@@ -12,6 +12,8 @@ env:
 
 jobs:
   deploy:
+    permissions:
+      contents: write
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code