Add automatic instrumentation of Deno crons

[AbhiPrasad]

Problem Statement

https://deno.com/blog/cron

https://docs.sentry.io/platforms/node/crons/

Solution Brainstorm

Add instrumentation around Deno.cron

[AbhiPrasad]

Here's a super WIP impl I made - have to double check if we can Proxy the Deno.cron global like this.

/* eslint-disable deprecation/deprecation */
import { withMonitor } from '@sentry/core';
import type { Integration } from '@sentry/types';

/** Creates cron . */
export class DenoCron implements Integration {
  /** @inheritDoc */
  public static id = 'DenoCron';

  /** @inheritDoc */
  public name: string = DenoCron.id;

  /** @inheritDoc */
  public setupOnce(): void {
    if ('cron' in Deno && typeof Deno.cron === 'function') {
      Deno.cron = new Proxy(Deno.cron, {
        apply: (cronTarget, cronThisArg, cronArgs: Parameters<typeof Deno.cron>) => {
          const [name, schedule] = cronArgs;
          withMonitor(name, () => cronTarget.apply(cronThisArg, cronArgs), {
            // (minutes) so 12 hours - just a very high arbitrary number since we don't know the actual duration of the users cron job
            maxRuntime: 60 * 12,
            schedule: {
              type: 'crontab',
              value: schedule,
            },
          });
        },
      });
    }
  }
}

[AbhiPrasad]

https://discord.com/channels/684898665143206084/1179489397947760661/1179500002951831703

The API is unstable, so it could change in the future. I don't expect major changes though, other than adding more fields to options (which is non-breaking).

[AbhiPrasad]

docs: getsentry/sentry-docs#8733