Bump selfsigned from 2.4.1 to 4.0.0

Bumps [selfsigned](https://github.com/jfromaniello/selfsigned) from 2.4.1 to 4.0.0.
- [Changelog](https://github.com/jfromaniello/selfsigned/blob/master/CHANGELOG.md)
- [Commits](jfromaniello/selfsigned@v2.4.1...v4.0.0)

---
updated-dependencies:
- dependency-name: selfsigned
  dependency-version: 4.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -433,7 +433,7 @@
     "jsonschema": "^1.4.0",
     "pnpm": "^10.2.1",
     "prettier": "^3.3.3",
-    "selfsigned": "^2.0.1",
+    "selfsigned": "^4.0.0",
     "typescript": "^5.2.2",
     "typescript-eslint": "^8.4.0",
     "uvu": "^0.5.3",