Tweak "reportIfTooLong" comment to match implementation (#13413)

In #13305, `reportIfTooLong` implementation was tweaked to bring down
the threshold from 1s to 200ms. However, the JSDOC comment was never
updated.

I happened to stumble across this; going ahead and submitting this
JSDOC-only change.

packages/loader/container-loader/src/container.ts

@@ -238,7 +238,7 @@ const getCodeProposal =
     (quorum: IQuorumProposals) => quorum.get("code") ?? quorum.get("code2");
 
 /**
- * Helper function to report to telemetry cases where operation takes longer than expected (1s)
+ * Helper function to report to telemetry cases where operation takes longer than expected (200ms)
  * @param logger - logger to use
  * @param eventName - event name
  * @param action - functor to call and measure