Regenerate ts-sdk supervisor schema for first_task_reschedule_start_date

A new prek hook (check-ts-sdk-supervisor-schema) landed on main after
this branch was created, requiring the TypeScript SDK's generated
supervisor types to stay in sync with the Python schema.json. Run
`pnpm run generate:supervisor` to add the missing
first_task_reschedule_start_date field to ts-sdk/src/generated/supervisor.ts.

Author: hkc-8010

ts-sdk/src/generated/supervisor.ts

@@ -230,6 +230,7 @@ export type TaskInstanceState =
   | "deferred"
   | "awaiting_input";
 export type TaskRescheduleCount = number;
+export type FirstTaskRescheduleStartDate = string | null;
 export type MaxTries = number;
 export type Key = string;
 export type Value = string | null;
@@ -1011,6 +1012,7 @@ export interface TaskCallbackRequest {
 export interface TIRunContext {
   dag_run: DagRun;
   task_reschedule_count?: TaskRescheduleCount;
+  first_task_reschedule_start_date?: FirstTaskRescheduleStartDate;
   max_tries: MaxTries;
   variables?: Variables;
   connections?: Connections;