fix(plugin): bump threejs version

Author: nartc

libs/plugin/src/generators/version.ts

@@ -1,6 +1,6 @@
 export const ANGULAR_THREE_VERSION = '^2.0.0';
-export const THREE_VERSION = '^0.166.0';
-export const THREE_TYPE_VERSION = '^0.166.0';
+export const THREE_VERSION = '^0.168.0';
+export const THREE_TYPE_VERSION = '^0.168.0';
 export const NGXTENSION_VERSION = '^4.0.0';
 
 export const SOBA_PEER_DEPENDENCIES = {