fix: add contents write permission to release job for asset uploads

Author: avrabe

.github/workflows/ci.yml

@@ -368,6 +368,8 @@ jobs:
     runs-on: ubuntu-latest
     needs: [tinygo-component, integration-test, quality-gate]  # rust-component disabled
     if: github.event_name == 'release' && github.event.action == 'published'
+    permissions:
+      contents: write  # Required to upload release assets
 
     steps:
     - name: Checkout code