fix(Makefile): add yamllint as dedicated target

.editorconfig

@@ -9,4 +9,7 @@ indent_size = 2
 end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = false
-insert_final_newline = false
+insert_final_newline = false
+
+[Makefile]
+indent_style = tab