ci: Add permission config to workflow files

Author: flovogt

.github/workflows/ci.yml

@@ -7,6 +7,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   test:
     name: General checks

.github/workflows/commitlint.yml

@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+  pull-requests: read
+
 jobs:
   commitlint:
     runs-on: ubuntu-latest

.github/workflows/issues.yml

@@ -3,6 +3,10 @@ on:
   schedule:
     - cron: '00 20 * * *'
 
+permissions:
+  issues: write
+  pull-requests: write
+
 jobs:
   stale:
     name: Flag and close stale issues

.github/workflows/reuse-compliance.yml

@@ -8,6 +8,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   compliance-check:
     name: Compliance Check