Add triagebot notification for bootstrap config changes

Signed-off-by: onur-ozkan <[email protected]>

triagebot.toml

@@ -566,6 +566,9 @@ message = "`src/tools/x` was changed. Bump version of Cargo.toml in `src/tools/x
 message = "Third-party dependency whitelist may have been modified! You must ensure that any new dependencies have compatible licenses before merging."
 cc = ["@davidtwco", "@wesleywiser"]
 
+[mentions."src/bootstrap/config.rs"]
+message = "This PR changes `src/bootstrap/config.rs`. If appropriate, please also update `CONFIG_CHANGE_HISTORY` in `src/bootstrap/lib.rs` and `change-id` in `config.example.toml`."
+
 [mentions."src/bootstrap/defaults/config.compiler.toml"]
 message = "This PR changes src/bootstrap/defaults/config.compiler.toml. If appropriate, please also update `config.codegen.toml` so the defaults are in sync."
 [mentions."src/bootstrap/defaults/config.codegen.toml"]