fix: Added missing template types for returned jobs in the schedule method.

This PR should fix the following typing problem:

import { Job, JobAttributesData, Pulse } from '@pulsecron/pulse';

interface CustomJobData extends JobAttributesData {
  myOption: string;
}

const jobCreationHelper = async <T extends CustomJobData = CustomJobData>(
  queue: Pulse,
  name: string,
  data: T,
): Promise<Job<T>> => {
  const job = await queue.schedule<T>('in 5 seconds', name, data);
  return job; // <-- Type 'JobAttributesData' is missing the following properties from type 'CustomJobData': myOption (2322)
};

This typing issue appears because returned Job instances are not properly typed using T from the template type. See:

https://github.com/pulsecron/pulse/blob/d8b4c04aa6c093be9f202ab66d0c41125844d59f/src/pulse/schedule.ts#L29
https://github.com/pulsecron/pulse/blob/d8b4c04aa6c093be9f202ab66d0c41125844d59f/src/pulse/schedule.ts#L48

I have refactored typing in the /src/pulse/schedule.ts to fix the issue. Tests are passing.

pulsecron / pulse

fix: Added missing template types for returned jobs in the schedule method. #37