build(deps-dev): bump @types/mailparser from 3.4.5 to 3.4.6

Bumps [@types/mailparser](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/mailparser) from 3.4.5 to 3.4.6.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/mailparser)

---
updated-dependencies:
- dependency-name: "@types/mailparser"
  dependency-version: 3.4.6
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -53,7 +53,7 @@
     "@types/jest": "^29.5.14",
     "@types/json-stable-stringify": "^1.2.0",
     "@types/jsonwebtoken": "^9.0.9",
-    "@types/mailparser": "^3.4.5",
+    "@types/mailparser": "^3.4.6",
     "@types/marked": "^6.0.0",
     "@types/node": "^22.15.3",
     "@types/nodemailer": "^6.4.17",