Describe the issue:
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[Doc][Install Guide][RHCS 5x] Change RHCS version.

Change 5.2 to 5
Section 2.8 "Operating system requirements for Red Hat Ceph Storage"
Actual : The release of Red Hat Ceph Storage 5.2 is supported on Red Hat Enterprise Linux 8.4 EUS or later.
Expected :The release of Red Hat Ceph Storage 5 is supported on Red Hat Enterprise Linux 8.4 EUS or later.

Describe the task you were trying to accomplish:
=================================================
In Section 2.8 "Operating system requirements for Red Hat Ceph Storage" change version from 5.2 to 5

Suggestions for improvement:
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Section 2.8 "Operating system requirements for Red Hat Ceph Storage"
Actual : The release of Red Hat Ceph Storage 5.2 is supported on Red Hat Enterprise Linux 8.4 EUS or later.
Expected :The release of Red Hat Ceph Storage 5 is supported on Red Hat Enterprise Linux 8.4 EUS or later.

Document URL:
https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/5/html/installation_guide/red-hat-ceph-storage-considerations-and-recommendations#operating-system-requirements-for-red-hat-ceph-storage_install

Chapter/Section Number and Title:
2.8. Operating system requirements for Red Hat Ceph Storage

Product Version:
RHCS 5x