Lock file maintenance (#207)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

example/pubspec.lock

@@ -403,10 +403,10 @@ packages:
     dependency: transitive
     description:
       name: watcher
-      sha256: "592ab6e2892f67760543fb712ff0177f4ec76c031f02f5b4ff8d3fc5eb9fb61a"
+      sha256: f52385d4f73589977c80797e60fe51014f7f2b957b5e9a62c3f6ada439889249
       url: "https://pub.dev"
     source: hosted
-    version: "1.1.4"
+    version: "1.2.0"
   web:
     dependency: transitive
     description: