Bump version

Author: opekope2

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 java = "21" # Don't forget to update *.mixins.json
 kotlin = "2.0.0"
-optigui = "2.3.0-beta.8+1.21"
+optigui = "2.3.0-beta.9+1.21"
 minecraft = "1.21"
 yarn = "1.21+build.2"
 fabric-loom = "1.6-SNAPSHOT"