Add entity_details_requested event support

[kang8]

Summary

• Add entity_details_requested to the AnyManifestEvent union type for work objects support
• Mirror the change in the Deno-compatible copy (src_deno/manifest/events.ts)

Context

Slack added the entity_details_requested event for work objects. The official node-slack-sdk added this in PR slackapi/node-slack-sdk#2412. This PR adds the corresponding event string to this library's manifest event types.

Test plan

• TypeScript compilation passes (tsc --noEmit)
• Formatting check passes (biome format)

[kang8]

P.S. The script comment at the top of the events files is outdated:

slack-web-api-client/src_deno/manifest/events.ts

Lines 1 to 3 in 14ba015

	// https://api.slack.com/events?filter=Events
	// var events = [].slice.call(document.getElementsByClassName('apiReferenceFilterableList__listItemLink')).map(e => '"' + e.innerText + '"').join(' | '); console.log("export type AnyManifestEvent = Exclude<" + events + ", 'app_rate_limited'>;");
	export type AnyManifestEvent = Exclude<

• The URL https://api.slack.com/events?filter=Events now redirects to https://docs.slack.dev/reference/events/
• The new page no longer uses the apiReferenceFilterableList__listItemLink class, so the browser console snippet can no longer be used to generate the events list