OSDOCS-11826 ROSA/OSD increase to 249 nodes

[xJustin]

Updated info for max node size in ROSA classic and OSD to 249 at +4.14.14.

Added a RN for ROSA

Removed some ROSA mentions that were in the OSD docs.

Version(s):

4.16+

Issue:

https://issues.redhat.com/browse/OSDOCS-11826

Link to docs preview:

Dedicated L&S update: https://81800--ocpdocs-pr.netlify.app/openshift-dedicated/latest/osd_planning/osd-limits-scalability.html

ROSA L&S update: https://81800--ocpdocs-pr.netlify.app/openshift-rosa/latest/rosa_planning/rosa-limits-scalability.html

Install Mention: https://81800--ocpdocs-pr.netlify.app/openshift-rosa/latest/rosa_install_access_delete_clusters/rosa-sts-interactive-mode-reference.html

Release note: https://81800--ocpdocs-pr.netlify.app/openshift-rosa/latest/rosa_release_notes/rosa-release-notes.html#rosa-q3-2024_rosa-whats-new

QE review:

• [ ] QE has approved this change.

Additional information: