[ENHANCEMENT] Bump RKE2 to v1.27.13+rke2r1 and Rancher to v2.8.3

[FrankYang0529]

Is your enhancement related to a problem? Please describe.

Describe the solution you'd like

Describe alternatives you've considered

Additional context

[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:

• Verify Kubernetes version is v1.27.13+rke2r1: kubectl get nodes
• Verify embedded Rancher is v2.8.3: (1) by checking rancher pod images (2) kubectl get settings.management.cattle.io server-version

• 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:

• 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:

[harvesterhci-io-github-bot]

Automation e2e test issue: harvester/tests#1275

[noahgildersleeve]

Verified in Harvester v1.3-95b4f9dc-head on vagrant-pxe-harvester deploy with 2 nodes in libvirt.

Verification Steps

• Run kubectl get nodes
• Run kubectl get settings.management.cattle.io server-version

Expected Results

• Kubernetes version is v1.27.13+rke2r1
• Embedded Rancher is v2.8.3