add change entry for custom clippy support

Signed-off-by: onur-ozkan <work@onurozkan.dev>

src/bootstrap/src/utils/change_tracker.rs

@@ -230,4 +230,9 @@ pub const CONFIG_CHANGE_HISTORY: &[ChangeInfo] = &[
         severity: ChangeSeverity::Warning,
         summary: "./x test --rustc-args was renamed to --compiletest-rustc-args as it only applies there. ./x miri --rustc-args was also removed.",
     },
+    ChangeInfo {
+        change_id: 129152,
+        severity: ChangeSeverity::Info,
+        summary: "New options `build.cargo-clippy` and `build.clippy-driver` added for supporting the use of custom/external clippy",
+    },
 ];