[ANNOUNCE] kueue v0.15.7 and v0.16.4 are released

[Michał Woźniak]

Hello folks,

We have just released kueue v0.15.7 and v0.16.4, with bug fixes and small features.
For more details, refer to the release notes:

- v0.15.7: https://github.com/kubernetes-sigs/kueue/releases/tag/v0.15.7
- v0.16.4: https://github.com/kubernetes-sigs/kueue/releases/tag/v0.16.4

Thanks to the contributors who reported the issues and sent patches!

Cheers,
Michal