Update Solr known limitations

[danreb]

This will update Pantheon Solr offering's known limitation to avoid confusing customers

Closes #

Summary

Doc Page Title - <Enter a one sentence summation of the pertinent changes (including not-yet-completed work) provided by this PR.>

Effect

The following changes are already committed:

Remaining Work and Prerequisites

The following changes still need to be completed:

• [ ] List any outstanding work here

Dependencies and Timing

• [ ] Other prerequisites that must be completed before merging this PR

Release:

• [ ] When ready
• [ ] After date: $DATE

---

Post Launch

Do not remove - To be completed by the docs team upon merge:

• [ ] Redirect /old-path/ => /new-path/ (if applicable)
• [ ] Include/exclude pages ^ respectively within docs search service provider (if applicable)
• [ ] For Heroes - add a props post to the discussion board.
• [ ] Remove from the project board

[pantheon-decoupled[bot]]

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[danreb]

The changes made from the PR have been discussed in the PRT search internal Slack channel here https://pantheon.slack.com/archives/C03PBL22K44/p1710891863296069

[stevector]

@stovak or @greg-1-anderson can you review to confirm the accuracy of these changes?

[pantheon-decoupled[bot]]

:zap: Deployed with Pantheon Decoupled

This build was successfully deployed with Pantheon. You can track the build logs here.

:eyes: Preview: https://pr-8899-documentation.appa.pantheon.site :hammer_and_wrench: Manage in Pantheon: https://dashboard.pantheon.io/site/2b30153f-e8b1-4427-b076-6109e704ba5d/overview