Bump seroval from 1.1.1 to 1.4.2 in /app

Bumps [seroval](https://github.com/lxsmnsyc/seroval) from 1.1.1 to 1.4.2.
- [Release notes](https://github.com/lxsmnsyc/seroval/releases)
- [Commits](https://github.com/lxsmnsyc/seroval/commits)

---
updated-dependencies:
- dependency-name: seroval
  dependency-version: 1.4.2
  dependency-type: indirect
...

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

Author: dependabot[bot]