fix(ci): add permissions block to lint workflow (#14)

Author: codepuncher

.github/workflows/lint.yml

@@ -5,13 +5,17 @@ on:
     paths:
       - 'scripts/**'
 
+permissions: {}
+
 concurrency:
   group: lint-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
   shellcheck:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
       - uses: actions/checkout@v6