docs: add Posit's ROR ID (#592)

Co-authored-by: maelle <maelle@users.noreply.github.com>

Author: maelle

DESCRIPTION

@@ -7,7 +7,8 @@ Authors@R: c(
            comment = c(ORCID = "0000-0001-8552-0029")),
     person("Kirill", "Müller", , "kirill@cynkra.com", role = c("aut", "cre"),
            comment = c(ORCID = "0000-0002-1416-3412")),
-    person("Posit Software, PBC", role = c("cph", "fnd"))
+    person("Posit Software, PBC", role = c("cph", "fnd"),
+           comment = c(ROR = "03wc8by49"))
   )
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