chore(pubspec): update lockfile

Author: chirayuk

example/pubspec.lock

@@ -70,7 +70,7 @@ packages:
   route_hierarchical:
     description: route_hierarchical
     source: hosted
-    version: "0.4.21"
+    version: "0.4.22"
   source_maps:
     description: source_maps
     source: hosted