Bump @types/node from 24.19.0 to 26.6.4

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 24.19.0 to 26.6.4.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-version: 26.6.4
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -82,7 +82,7 @@
     "@tailwindcss/postcss": "^4",
     "@types/html-to-text": "^9.0.4",
     "@types/mailparser": "^3.4.6",
-    "@types/node": "^24.19.0",
+    "@types/node": "^26.6.4",
     "@types/nodemailer": "^8.0.2",
     "@types/react": "^19",
     "@types/react-dom": "^19",