Release 0.28

[Wei Huang]

Tasks

Beta Give feedback

1. cut new branch https://github.com/kubernetes-sigs/scheduler-plugins/tree/release-1.28
2. Add presubmit job for branch release-1.28 kubernetes/test-infra#32444
   approved area/config area/jobs cncf-cla: yes lgtm sig/testing size/M +7
   
3. tag cutting: https://github.com/kubernetes-sigs/scheduler-plugins/releases/tag/v0.28.9
4. publish scheduler-plugins v0.28.9 kubernetes/k8s.io#6705
   approved area/artifacts area/registry.k8s.io cncf-cla: yes lgtm sig/k8s-infra size/XS +7
   
5. Documents update for release v0.28.9 #719
   approved cncf-cla: yes kind/documentation lgtm release-note-none size/M +6
   
6. Release page: https://github.com/kubernetes-sigs/scheduler-plugins/releases/tag/v0.28.9
7. Announcement email sent to sig-scheduling mailing group: https://groups.google.com/g/kubernetes-sig-scheduling/c/SeVzaeVtImM/m/Fi7fmyIKAwAJ

Refs:

• release process
• 🔒 staging images
• testgrid:post-scheduler-plugins-push-images

[Wei Huang]

I noticed a glitch: I forgot to include include #700 in v0.28.8, so I have to bump the version to v0.28.9 to include it.