Potential fix for code scanning alert no. 50: Workflow does not contain permissions

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

Author: dskloetc

.github/workflows/publish.yml

@@ -29,6 +29,8 @@ jobs:
   calculate-changes:
     name: Compute changed adapters
     runs-on: [ubuntu-latest]
+    permissions:
+      contents: read
     outputs:
       adapter-list: ${{ steps.changed-adapters.outputs.CHANGED_ADAPTERS }}
       tmp-branch: ${{ steps.push-branch.outputs.TMP_BRANCH }}