MINOR: [R] Add Jacob Wujciak-Jens as author (#38188)

### Rationale for this change

Add Jacob Wujciak-Jens as one of the R package authors

### What changes are included in this PR?

Add Jacob Wujciak-Jens as one of the R package authors

### Are these changes tested?

No

### Are there any user-facing changes?

No

Lead-authored-by: Nic Crane <thisisnic@gmail.com>
Co-authored-by: Jacob Wujciak-Jens <jacob@wujciak.de>
Signed-off-by: Jacob Wujciak-Jens <jacob@wujciak.de>

Author: thisisnic

r/DESCRIPTION

@@ -10,6 +10,7 @@ Authors@R: c(
     person("Jonathan", "Keane", email = "jkeane@gmail.com", role = c("aut")),
     person("Drago\u0219", "Moldovan-Gr\u00fcnfeld", email = "dragos.mold@gmail.com", role = c("aut")),
     person("Jeroen", "Ooms", email = "jeroen@berkeley.edu", role = c("aut")),
+    person("Jacob", "Wujciak-Jens", email = "jacob@wujciak.de", role = c("aut")),
     person("Javier", "Luraschi", email = "javier@rstudio.com", role = c("ctb")),
     person("Karl", "Dunkle Werner", email = "karldw@users.noreply.github.com", role = c("ctb"), comment = c(ORCID = "0000-0003-0523-7309")),
     person("Jeffrey", "Wong", email = "jeffreyw@netflix.com", role = c("ctb")),