[r] Update DESCRIPTION to 1.5.1

[johnkerl]

This is a small bugfix release

[eddelbuettel]

Should we sweep up more PRs (and #1894 is a candidate though not a must have) and/or wait for an updated-at-CRAN SeuratObject, or is your preference to get this out ASAP?

[johnkerl]

@eddelbuettel main and release-1.5 are in sync except for #1733 which is shelved for reasons beyond our control. #1894 is still open.

The cross-organizational discussion last week was to tag 1.5.1 today, while @mojaveazure says he should have the Seurat issue solved later this week. (See also https://github.com/TileDB-Inc/TileDB-Cloud-JupyterHub/pull/562/commits/b01ce792788538cb3fd083d7624c1bbf9ac9ce97.) That would place #1894 beyond 1.5.1.

[johnkerl]

@eddelbuettel I don't mind getting #1894 in but it needs to be accepted and merged to main first.

[eddelbuettel]

Yes #1894 should either get accepted (looking at eg you among three possible reviewers, can't do it myself) or get closed. It was a 50% hail mary on the issue created by Matrix/SeuratObject having a fight, ended up not hurting us, but it would be marginally better to test under 4.3.2 anyway. So for general PR hygiene we should either accept or close. Your assistance in that resolution would be appreciated.

I'll accept this one to let you proceed the release.

[eddelbuettel]

[johnkerl]

@eddelbuettel I wasn't a reviewer on #1894 but I'll self-add, given your suggestion. Thanks!

[eddelbuettel]

I see. Thanks for unblocking.