Support for new format of discord webhooks

[Kwandes]

Goal

Support all available discord webhook formats

Context

It seems like your code does not account for webhooks created via the discord app
When I create a webhook, its URL does not match the rules defined in the API:

sentrydiscord.dev/pages/api/create.js

Lines 9 to 12 in 471192d

	// Ensure it's a Discord Webhook
	if (!url?.startsWith('https://discord.com/api/webhooks/') &&
	!url?.startsWith('https://ptb.discord.com/api/webhooks/') &&
	!url?.startsWith('https://canary.discord.com/api/webhooks/') ) {

The webhook created via the discordApp:
https://discordapp.com/api/webhooks/1234/A1B2C3
I was able to modify the above URL to https://discord.com/api/webhooks/1234/A1B2C3 which your form has accepted, and I've been able to retrieve events from Sentry

Extra info

Discord app information:

• Release Channel: stable,
• Build Number: 101451

[IanMitchell]

Pretty sure discordapp.com is the old way; we've moved our domain over since then