Potential fix for code scanning alert no. 2: Workflow does not contain permissions (#22)

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

Author: crazyguitar

.github/workflows/ppa-publish.yml

@@ -16,6 +16,9 @@ on:
         required: false
         default: "resolute,noble,jammy"
 
+permissions:
+  contents: read
+
 jobs:
   resolve:
     runs-on: ubuntu-24.04