[dev-v2.8] Add Longhorn 1.7.1 chart

[mantissahz]

Release Longhorn v1.7.1 into Rancher 2.8

Longhorn longhorn/longhorn#9346
Rancher rancher/rancher#47183

cc @innobead @derekbit @rebeccazzzz @PhanLe1010 @khushboo-rancher @roger-ryao

[github-actions]

Validation steps

• Ensure all container images have repository and tag on the same level to ensure that all container images are included in rancher-images.txt which are used by airgap customers.

  Ex:-
    longhorn-controller:
      repository: rancher/hardened-sriov-cni
      tag: v2.6.3-build20230913
  

• Add a 👍 (thumbs up) reaction to this comment once done. CI won't pass without this reaction to the github-action bot's latest validation comment.
• Approve the PR to run the CI check.

[mantissahz]

Images are not mirrored because of some unauthorized issues https://github.com/rancher/image-mirror/actions/runs/10919337304/job/30306768564.
And we might need to request the EIO team to create a new repo for longhorn-cli

[PhanLe1010]

Images are not mirrored because of some unauthorized issues https://github.com/rancher/image-mirror/actions/runs/10919337304/job/30306768564. And we might need to request the EIO team to create a new repo for longhorn-cli

Same as #4470 (comment)

[PhanLe1010]

LGTM

[PhanLe1010]

@khushboo-rancher @roger-ryao Could you please help to test the merged chart at dev-2.8 branch. Then signoff.After that, Rancher team release it into release-v2.8 branch

[roger-ryao]

@khushboo-rancher @roger-ryao Could you please help to test the merged chart at dev-2.8 branch. Then signoff.After that, Rancher team release it into release-v2.8 branch

Prerequisites:

• Set the Concurrent Automatic Engine Upgrade Per Node Limit to a value greater than 0.
• Rancher Prime: v2.8.8

Verify is passed as follows step

• Fresh installation
• Uninstallation
• Upgrade from 103.2.3+up1.5.5 -> 103.3.1+up1.6.2 -> 103.4.0+up1.7.1
• Upgrade from 103.3.1+up1.6.2 -> 103.4.0+up1.7.1

Note:
We noticed that when installing Longhorn, the default value for Container Registry for Rancher System Container Images in Rancher Prime is enabled, with the value set to registry.rancher.com. However, all related Longhorn images are not synced to registry.rancher.com.