ci(release): fixes branch pattern (#44)

Author: Tbhesswebber

.github/workflows/release.yml

@@ -3,7 +3,7 @@ on:
   push:
     branches:
       - '[1-9].x'
-      - '[1-9].[0-9].x'
+      - '[1-9].[x0-9].[x0-9]'
       - main
       - alpha