fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-INFLIGHT-6095116
- https://snyk.io/vuln/SNYK-JS-NODEMAILER-6219989
- https://snyk.io/vuln/SNYK-JS-UNDICI-6252336

package.json

@@ -262,7 +262,7 @@
     "validator": "13.11.0",
     "web-resource-inliner": "6.0.1",
     "websocket-as-promised": "2.0.1",
-    "wildduck": "1.42.1",
+    "wildduck": "1.42.4",
     "wkhtmltopdf": "0.4.0",
     "ws": "8.16.0",
     "zone-mta": "3.9.5"