[keyserver] script to reset a user's password

Summary:
Depends on D13764

script that resets the password for a given user

Test Plan: registered a user with identity, modified staff user list on identity to include my keyserver's user ID, then ran script and changed registered user's password. successfully logged in with new password

Reviewers: ashoat

Reviewed By: ashoat

Subscribers: tomek

Differential Revision: https://phab.comm.dev/D13765

keyserver/src/scripts/reset-identity-user-password.js

@@ -0,0 +1,12 @@
+// @flow
+
+import { main } from './utils.js';
+import { privilegedResetUserPassword } from '../utils/identity-utils.js';
+
+async function resetIdentityUserPassword() {
+  const targetUsername = '';
+  const password = '';
+  await privilegedResetUserPassword(targetUsername, password);
+}
+
+main([resetIdentityUserPassword]);