uitest: Fix small issue in UI Logger DSL grammar

Change-Id: Ia9ffcd1665dad3d3d2827d40bcec345186e53aef
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/93927
Tested-by: Jenkins
Reviewed-by: Ahmed ElShreif <aelshreif7@gmail.com>

uitest/ui_logger_dsl/uno_commands.tx

@@ -12,6 +12,9 @@ parameter:
 ;
 
 data:
-     ','? key=STRING ':' value= INT|ID
+     ','? key=STRING ':' value= value_type
 ;
 
+value_type:
+    INT|ID
+;