[BUG] allow-collecting-longhorn-usage-metrics setting is missing from chart settings

[yardenshoham]

Describe the bug (🐛 if you encounter this issue)

The chart is missing the allow-collecting-longhorn-usage-metrics setting. We should add it.

• chart: Add "Allow Collecting Longhorn Usage Metrics" to settings #7049

Additional context

cc @innobead @longhorn/qa @c3y1huang

[longhorn-io-github-bot]

Pre Ready-For-Testing Checklist

• Where is the reproduce steps/test steps documented?
  The reproduce steps/test steps are at:

• Is there a workaround for the issue? If so, where is it documented?
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• 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:

• Have the backend code been merged (Manager, Engine, Instance Manager, BackupStore etc) (including backport-needed/*)?
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• Which areas/issues this PR might have potential impacts on?
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• If labeled: require/LEP Has the Longhorn Enhancement Proposal PR submitted?
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• If labeled: require/doc Has the necessary document PR submitted or merged (including backport-needed/*)?
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• If labeled: require/automation-e2e Has the end-to-end 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 (including backport-needed/*)
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• If the fix introduces the code for backward compatibility Has a separate issue been filed with the label release/obsolete-compatibility?
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[innobead]

@ChanYiLin this is contributed by @yardenshoham, because he does not belong to Longhorn org, please help drive this issue to walk through the issue process. Also, see if there is any doc we need to update and update accordingly.

[ChanYiLin]

Hi @yardenshoham
Thanks for your contribution
After the setting is added to the helm chart, we can then further update the content in our website.
Could you help to create a PR to this Repo: https://github.com/longhorn/website

1. Paste the helm values table you generated in README to this page
2. Add the description of the setting to this page

And that's it, thanks!

[yardenshoham]

I have a branch with 1 done, I'm not sure where exactly 2 should go because it's a default setting

[ChanYiLin]

yes now we have to update the content in our website so users will see the new setting when they refer to our website
you can go to this repo: https://github.com/longhorn/website
and create a PR to update the helm values table you generated to this place place:https://github.com/longhorn/website/blob/master/content/docs/1.6.0/references/helm-values.md

[yardenshoham]

Done longhorn/website#806

[ChanYiLin]

Hi @yardenshoham
Now our QA team will test the helm chart and close the issue if it all works fine.
Thanks for your contribution again!

[roger-ryao]

Verified on master-head 20231205

• longhorn master-head 6ad473c

Result Passed

• require/chart : Installed Longhorn using Helm chart and modified allowCollectingLonghornUsageMetrics to false, and it took effect.
• require/doc : Checked documentation in Update helm-chart values website#806