Fix Copilot review REST guide link versions

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: obvioussean

content/rest/pulls/review-requests.md

@@ -16,6 +16,10 @@ category:
 
 Pull request authors and repository owners and collaborators can request a pull request review from anyone with write access to the repository. Each requested reviewer will receive a notification asking them to review the pull request.
 
+{% ifversion fpt or ghec %}
+
 To request a review specifically from {% data variables.product.prodname_copilot_short %}—and to set per-PR preferences such as the review effort level or whether to re-review on each new push—use the dedicated {% data variables.product.prodname_copilot_short %} review endpoint instead of adding the {% data variables.product.prodname_copilot_short %} bot to this endpoint. For more information, see [AUTOTITLE](/rest/guides/requesting-copilot-code-review-with-the-rest-api).
 
+{% endif %}
+
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