Potential fix for code scanning alert no. 3: Workflow does not contain permissions

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: GeekMasher

.github/workflows/self-action.yml

@@ -5,6 +5,9 @@ on:
     branches: [ main ]
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -16,4 +19,3 @@ jobs:
         uses: ./ 
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-