rqt_pr2_dashboard: 0.2.4-0 in 'hydro/release.yaml' [bloom]

Increasing version of package(s) in repository `rqt_pr2_dashboard`:
- previous version: `null`
- new version: `0.2.4-0`
- distro file: `hydro/release.yaml`
- bloom version: `0.4.2`