Updated tk-flame to v1.16.4

Author: mathurf

env/includes/common/engines.yml

@@ -43,7 +43,7 @@ common.engines.tk-aftereffects.location:
 common.engines.tk-flame.location:
   type: app_store
   name: tk-flame
-  version: v1.16.3
+  version: v1.16.4
 common.engines.tk-alias.location:
   type: app_store
   name: tk-alias