Log Message:
(devel/R-cli) Updated 3.6.2 to 3.6.3

# cli 3.6.3

* cli now builds on ARM Windows.

* "Solarized Dark" is now the default syntax highlighting theme in
  terminals.

* The `{.obj_type_friendly}` inline style now only shows the first class
  name (#669 @olivroy).

* Syntax highlighting now does not fail in RStudio if the rstudioapi
  package is not installed (#697).