feat(core): Add user.profile.beforeUpdate hook (#8144)

Add `user.profile.beforeUpdate` hook so we can prevent user email change
if it overlaps with other users email.

packages/cli/src/controllers/me.controller.ts

@@ -73,6 +73,8 @@ export class MeController {
 			}
 		}
 
+		await this.externalHooks.run('user.profile.beforeUpdate', [userId, currentEmail, payload]);
+
 		await this.userService.update(userId, payload);
 		const user = await this.userService.findOneOrFail({ where: { id: userId } });