arrow

GH-38142: [R] Add NEWS for 14.0.0 (#38143)


### Rationale for this change

The NEWS file needs updating for 14.0.0.

### What changes are included in this PR?

The NEWS file is updated with commits since 13.0.0.

### Are these changes tested?

N/A

### Are there any user-facing changes?

No
* Closes: #38142

Lead-authored-by: Dewey Dunnington <dewey@fishandwhistle.net>
Co-authored-by: Dewey Dunnington <dewey@voltrondata.com>
Co-authored-by: Nic Crane <thisisnic@gmail.com>
Signed-off-by: Dewey Dunnington <dewey@voltrondata.com>