chore: release 2.0.0-alpha.9 for golang

Author: phodal

build.gradle.kts

@@ -25,7 +25,7 @@ allprojects {
     apply(plugin = "java")
 
     group = "com.phodal.chapi"
-    version = "2.0.0-beta.8"
+    version = "2.0.0-beta.9"
     description =
         "Chapi is A common language meta information convertor, convert different languages to same meta-data model"