chore: add edit organization role to cli (#13365)

Editing custom org roles from hidden org cli command.

coderd/util/slice/slice.go

@@ -4,6 +4,15 @@ import (
 	"golang.org/x/exp/constraints"
 )
 
+// ToStrings works for any type where the base type is a string.
+func ToStrings[T ~string](a []T) []string {
+	tmp := make([]string, 0, len(a))
+	for _, v := range a {
+		tmp = append(tmp, string(v))
+	}
+	return tmp
+}
+
 // Omit creates a new slice with the arguments omitted from the list.
 func Omit[T comparable](a []T, omits ...T) []T {
 	tmp := make([]T, 0, len(a))