[backport v1.0] [BUG] VMIs created from VM Template don't have LiveMigrate evictionStrategy set

[harvesterhci-io-github-bot]

backport the issue #2357

[harvesterhci-io-github-bot]

Pre Ready-For-Testing Checklist

* [ ] If labeled: require/HEP Has the Harvester Enhancement Proposal PR submitted?
The HEP PR is at:

• Where is the reproduce steps/test steps documented?
  The reproduce steps/test steps are at: [BUG] VMIs created from VM Template don't have LiveMigrate evictionStrategy set #2357 (comment)

* [ ] Is there a workaround for the issue? If so, where is it documented?
The workaround is at:

* [ ] Have the backend code been merged (harvester, harvester-installer, etc) (including backport-needed/*)?
The PR is at:

~* [ ] Does the PR include the explanation for the fix or the feature? ~

~ * [ ] Does the PR include deployment change (YAML/Chart)? If so, where are the PRs for both YAML file and Chart?
The PR for the YAML change is at:
The PR for the chart change is at:~

• If labeled: area/ui Has the UI issue filed or ready to be merged?
  The UI issue/PR is at: [Backport]Harvester: Fix missing liveMigrate dashboard#353

* [ ] If labeled: require/doc, require/knowledge-base Has the necessary document PR submitted or merged?
The documentation/KB PR is at:

* [ ] If NOT labeled: not-require/test-plan Has the e2e test plan been merged? Have QAs agreed on the automation test case? If only test case skeleton w/o implementation, have you created an implementation issue?
- The automation skeleton PR is at:
- The automation test case PR is at:

* [ ] If the fix introduces the code for backward compatibility Has a separate issue been filed with the label release/obsolete-compatibility?
The compatibility issue is filed at:

[lanfon72]

Verified this bug has been fixed.

Test Information

• Environment: qemu/KVM 3 nodes
• Harvester Version: v1.0-3b6ab0d1-head
• ui-source Option: Auto
• ui-index: https://releases.rancher.com/harvester-ui/dashboard/release-harvester-v1.0/index.html

Verify Steps:

1. Install Harvester with at least 2 nodes
2. Navigate to Advanced/Settings and update ui-index to https://releases.rancher.com/harvester-ui/dashboard/release-harvester-v1.0/index.html and force refresh to make it applied.
3. Create Image for VM Creation
4. Navigate to Advanced/Templates and create a template t1
5. Create VM vm1 from template t1
6. Edit YAML of vm1, field spec.template.spec.evictionStrategy should be LiveMigrate
7. Enable Maintenance Mode on the host which hosting vm1
8. vm1 should start migrating automatically
9. Migration should success