fix: use built-in GITHUB_TOKEN for semantic-release

The workflow was using a custom GH_TOKEN secret that is not configured.
Changed to use the built-in GITHUB_TOKEN which is automatically provided
by GitHub Actions and has the necessary permissions already configured.

Author: claude

.github/workflows/release.yml

@@ -26,10 +26,8 @@ jobs:
 
       - name: Install dependencies
         run: npm i
-        env:
-          GH_TOKEN: ${{ secrets.GH_TOKEN }}
-        
+
       - name: Release
         env:
-          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: npm run release