Automatically evict replicas while draining (backport #2138)

[mergify]

This is an automatic backport of pull request #2138 done by Mergify.
Cherry-pick of dd66388 has failed:

On branch mergify/bp/v1.5.x/pr-2138
Your branch is up to date with 'origin/v1.5.x'.

You are currently cherry-picking commit dd663887.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
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Changes to be committed:
	modified:   api/model.go
	modified:   client/generated_node.go
	modified:   constant/events.go
	modified:   controller/controller_test.go
	modified:   controller/instance_manager_controller.go
	modified:   controller/node_controller.go
	modified:   controller/replica_controller.go
	modified:   controller/utils.go
	modified:   controller/volume_controller.go
	modified:   datastore/longhorn.go
	modified:   k8s/crds.yaml
	modified:   k8s/pkg/apis/longhorn/v1beta2/node.go
	modified:   k8s/pkg/apis/longhorn/v1beta2/replica.go
	modified:   manager/volume.go
	modified:   types/setting.go
	modified:   types/types.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   scheduler/replica_scheduler.go
	both modified:   scheduler/replica_scheduler_test.go
	both modified:   upgrade/v151to152/upgrade.go

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[ejweber]

Please hold for testing.

[ejweber]

Waiting on https://ci.longhorn.io/job/private/job/longhorn-tests-regression/6004/ https://ci.longhorn.io/job/private/job/longhorn-tests-regression/6010/. These four must merge together:

• Automatically evict replicas while draining (backport #2138) #2449
• Display AutoEvicting on Node tab while auto evicting (backport #663) longhorn-ui#679
• Automatically evict replicas while draining deployment changes (backport #6646) longhorn#7704
• Fix test_disk_eviction_with_node_level_soft_anti_affinity_disabled (backport #1607) longhorn-tests#1678

[ejweber]

Three regression tests failed in https://ci.longhorn.io/job/private/job/longhorn-tests-regression/6010/, but passed in:

• https://ci.longhorn.io/job/private/job/longhorn-tests-regression/6017/testReport/tests/test_ha/
• https://ci.longhorn.io/job/private/job/longhorn-tests-regression/6018/testReport/tests/test_ha/
• https://ci.longhorn.io/job/private/job/longhorn-tests-regression/6019/testReport/tests/test_basic/

This is ready to merge IMO.