build(deps): bump org.jobrunr:jobrunr-spring-boot-4-starter from 8.7.1 to 8.8.1 - #89

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/dependency-review-action@2031cfc080254a8a887f58cffee85186f0e49e48. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/