chore: bump on-headers and verdaccio

Bumps [on-headers](https://github.com/jshttp/on-headers) to 1.1.0 and updates ancestor dependency [verdaccio](https://github.com/verdaccio/verdaccio). These dependencies need to be updated together.


Updates `on-headers` from 1.0.2 to 1.1.0
- [Release notes](https://github.com/jshttp/on-headers/releases)
- [Changelog](https://github.com/jshttp/on-headers/blob/master/HISTORY.md)
- [Commits](jshttp/on-headers@v1.0.2...v1.1.0)

Updates `verdaccio` from 6.1.2 to 6.1.6
- [Release notes](https://github.com/verdaccio/verdaccio/releases)
- [Changelog](https://github.com/verdaccio/verdaccio/blob/v6.1.6/CHANGELOG.md)
- [Commits](verdaccio/verdaccio@v6.1.2...v6.1.6)

---
updated-dependencies:
- dependency-name: on-headers
  dependency-version: 1.1.0
  dependency-type: indirect
- dependency-name: verdaccio
  dependency-version: 6.1.6
  dependency-type: direct:development
...

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

Author: dependabot[bot]