fix(ci): use correct tag pattern for release workflow

The release workflow was using 'v*' but tags follow the pattern
'siphon-v*' and 'siphon-server-v*'.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: RemiKalbe

.github/workflows/release.yml

@@ -3,7 +3,8 @@ name: Release
 on:
   push:
     tags:
-      - 'v*'
+      - 'siphon-v*'
+      - 'siphon-server-v*'
 
 permissions:
   contents: write