style: use 'Self' to refer to own type (clippy::use_self) (#6735)

---------

Co-authored-by: daniel.eades <daniel.eades@seebyte.com>

src/configs/vcsh.rs

@@ -16,7 +16,7 @@ pub struct VcshConfig<'a> {
 
 impl Default for VcshConfig<'_> {
     fn default() -> Self {
-        VcshConfig {
+        Self {
             symbol: "",
             style: "bold yellow",
             format: "vcsh [$symbol$repo]($style) ",