Use dplyr 1.1 'default' parameter in 'case_when()' (#1525)

* Use dplyr 1.1 'default' parameter in 'case_when()'

* Update logicals.qmd

---------

Co-authored-by: Hadley Wickham <hadley@posit.co>

logicals.qmd

@@ -494,13 +494,13 @@ case_when(
 )
 ```
 
-If you want to create a "default"/catch all value, use `TRUE` on the left hand side:
+Use `.default` if you want to create a "default"/catch all value:
 
 ```{r}
 case_when(
   x < 0 ~ "-ve",
   x > 0 ~ "+ve",
-  TRUE ~ "???"
+  .default = "???"
 )
 ```