triagebot.toml: ping lolbinarycat if tidy extra checks were modified

Author: lolbinarycat

triagebot.toml

@@ -1080,6 +1080,10 @@ cc = ["@jieyouxu"]
 message = "The list of allowed third-party dependencies may have been modified! You must ensure that any new dependencies have compatible licenses before merging."
 cc = ["@davidtwco", "@wesleywiser"]
 
+[mentions."src/tools/tidy/src/ext_tool_checks.rs"]
+message = "`tidy` extra checks were modified."
+cc = ["@lolbinarycat"]
+
 [mentions."src/bootstrap/src/core/config"]
 message = """
 This PR modifies `src/bootstrap/src/core/config`.