Bump shelljs, strapi-hook-mongoose and strapi-utils in /src

Bumps [shelljs](https://github.com/shelljs/shelljs) to 0.8.5 and updates ancestor dependencies [shelljs](https://github.com/shelljs/shelljs), [strapi-hook-mongoose](https://github.com/strapi/strapi) and [strapi-utils](https://github.com/strapi/strapi). These dependencies need to be updated together.


Updates `shelljs` from 0.8.3 to 0.8.5
- [Release notes](https://github.com/shelljs/shelljs/releases)
- [Changelog](https://github.com/shelljs/shelljs/blob/master/CHANGELOG.md)
- [Commits](shelljs/shelljs@v0.8.3...v0.8.5)

Updates `strapi-hook-mongoose` from 3.0.0-alpha.26.2 to 3.0.0-next.31
- [Release notes](https://github.com/strapi/strapi/releases)
- [Commits](https://github.com/strapi/strapi/commits)

Updates `strapi-utils` from 3.0.0-alpha.26.2 to 3.0.0-next.31
- [Release notes](https://github.com/strapi/strapi/releases)
- [Commits](https://github.com/strapi/strapi/commits)

---
updated-dependencies:
- dependency-name: shelljs
  dependency-type: indirect
- dependency-name: strapi-hook-mongoose
  dependency-type: direct:production
- dependency-name: strapi-utils
  dependency-type: direct:production
...

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