[8.x](backport #4242) [APM] Remove limitation about host metrics in otel docs

[mergify]

Per @smith @AlexanderWert this limitation should be removed.

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This is an automatic backport of pull request #4242 done by Mergify.

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[bmorelli25]

@Mergifyio rebase

[mergify]

rebase

❌ Unable to rebase: user bmorelli25 is unknown.

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Please make sure bmorelli25 has logged in Mergify dashboard.

[bmorelli25]

rude

[bmorelli25]

@Mergifyio rebase

[mergify]

rebase

❌ Base branch update has failed

Details

Git reported the following error:

Rebasing (1/2)
Rebasing (2/2)
The previous cherry-pick is now empty, possibly due to conflict resolution.
If you wish to commit it anyway, use:

    git commit --allow-empty

Otherwise, please use 'git rebase --skip'
interactive rebase in progress; onto 9dc4f204
Last commands done (2 commands done):
   pick 9e3f9361 remove limitation about host metrics in otel docs (#4242)
   pick fef30f67 Delete docs/en/serverless directory
No commands remaining.
You are currently rebasing branch 'mergify/bp/8.x/pr-4242' on '9dc4f204'.
  (all conflicts fixed: run "git rebase --continue")

nothing to commit, working tree clean
Could not apply fef30f67... Delete docs/en/serverless directory

[bmorelli25]

@Mergifyio update

[mergify]

update

✅ Branch has been successfully updated