feat(core): Prompt user to confirm password when changing email and mfa is disabled (#19408)

Co-authored-by: Marc Littlemore <MarcL@users.noreply.github.com>

packages/@n8n/api-types/src/dto/user/user-update-request.dto.ts

@@ -28,4 +28,8 @@ export class UserUpdateRequestDto extends Z.class({
 	firstName: nameSchema().optional(),
 	lastName: nameSchema().optional(),
 	mfaCode: z.string().optional(),
+	/**
+	 * The current password is required when changing the email address and MFA is disabled.
+	 */
+	currentPassword: z.string().optional(),
 }) {}