feat: update recipient email address in test message

email-worker/sent-mail-tester.mjs

@@ -13,7 +13,7 @@ async function sendSimpleMessage() {
     console.log("Sending email...");
     const data = await mg.messages.create("rezije.app", {
       from: "Mailgun Sandbox <support@rezije.app>",
-      to: ["Nikola Derezic <nikola.derezic@gmail.com>"],
+      to: ["Nikola Derezic <armful-grief-knoll@duck.com>"],
       subject: "Hello Nikola Derezic",
       text: "Congratulations Nikola Derezic, you just sent an email with Mailgun! You are truly awesome!",
     });