ci: add minimal permissions

Author: gabe565

.github/workflows/build.yml

@@ -10,6 +10,8 @@ jobs:
   lint:
     name: Lint
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
       - name: Checkout code
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
@@ -27,6 +29,8 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
+    permissions:
+      contents: read
     steps:
       - name: Checkout code
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2