Merge pull request #5 from HackYourFuture/fix/grade-workflow-permissions

fix(ci): grant contents: read so the grade workflow loads

Author: lassebenni

.github/workflows/grade-assignment.yml

@@ -8,6 +8,7 @@ on:
 jobs:
   grade:
     permissions:
+      contents: read
       issues: write
       pull-requests: write
     uses: HackYourFuture/github-actions/.github/workflows/auto-grade.yml@main