v6.0.2-release

Update reference: https://github.com/goodrain/rainbond/releases/tag/v6.0.2-release

What's Changed

• feat: support for custom rbd-app-ui environment variables by @zzzhangqi in #86
• fix: change minio version by @zzzhangqi in #87
• feat: release v6.0.2 by @zzzhangqi in #88

Full Changelog: v6.0.1-release...v6.0.2-release