build(deps): bump react-range-step-input in /exoplanet-transit-simulator

Bumps [react-range-step-input](https://github.com/ccnmtl/react-range-step-input) from `2f2e163` to `c6a427a`.
- [Release notes](https://github.com/ccnmtl/react-range-step-input/releases)
- [Commits](ccnmtl/react-range-step-input@2f2e163...c6a427a)

---
updated-dependencies:
- dependency-name: react-range-step-input
  dependency-type: direct:production
...

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