⬆️ upgrade resend to v6.9.1

Author: renovate[bot]

apps/web/package.json

@@ -47,7 +47,7 @@
     "rehype-autolink-headings": "^7.1.0",
     "rehype-slug": "^6.0.0",
     "remark-gfm": "^4.0.1",
-    "resend": "^4.1.2",
+    "resend": "^6.0.0",
     "server-only": "^0.0.1",
     "tailwind-merge": "^3.4.0",
     "tw-animate-css": "^1.4.0",