[ENHANCEMENT] [v1.2] Bump RKE2 to v1.26.15+rke2r1

[bk201]

Is your enhancement related to a problem? Please describe.

We should catch up the latest RKE2 release.

Describe the solution you'd like

Bump RKE2 to v1.26.15+rke2r1

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 RKE2 is v1.26.15+rke2r1. Either for new deployment or upgrading from v1.2.1.

• 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:

[albinsun]

Verified done on v1.2-6d0fc357-head, close ticket.

Environment

• Harvester
  • Version: v1.2-6d0fc357-head
  • Profile: QEMU/KVM, 2 nodes (8C/16G/500G)
  • ui-source: Auto

Steps

1. Go to "Preferences" -> Check "Enable Extension developer features"

   

2. Go to "Support" -> "Access Embedded Rancher UI"

   

   

3. Go to "Nodes", check nodes' RKE2 version is v1.26.15+rke2r1