chore(github_search): upgrade dependencies

Author: felangel

examples/github_search/common_github_search/pubspec.yaml

@@ -9,6 +9,6 @@ environment:
 dependencies:
   bloc:
     path: ../../../packages/bloc
-  equatable: ^2.0.0-nullsafety.3
+  equatable: ^2.0.0
   http: ^0.13.0
-  rxdart: ^0.26.0-nullsafety.1
+  rxdart: ^0.26.0

examples/github_search/flutter_github_search/lib/main.dart

@@ -4,19 +4,16 @@ import 'package:common_github_search/common_github_search.dart';
 import 'package:flutter_github_search/search_form.dart';
 
 void main() {
-  final GithubRepository _githubRepository = GithubRepository(
+  final GithubRepository githubRepository = GithubRepository(
     GithubCache(),
     GithubClient(),
   );
 
-  runApp(App(githubRepository: _githubRepository));
+  runApp(App(githubRepository: githubRepository));
 }
 
 class App extends StatelessWidget {
-  const App({
-    Key? key,
-    required this.githubRepository,
-  }) : super(key: key);
+  const App({Key? key, required this.githubRepository}) : super(key: key);
 
   final GithubRepository githubRepository;
 
@@ -27,8 +24,7 @@ class App extends StatelessWidget {
       home: Scaffold(
         appBar: AppBar(title: const Text('Github Search')),
         body: BlocProvider(
-          create: (context) =>
-              GithubSearchBloc(githubRepository: githubRepository),
+          create: (_) => GithubSearchBloc(githubRepository: githubRepository),
           child: SearchForm(),
         ),
       ),

examples/github_search/flutter_github_search/pubspec.yaml

@@ -13,7 +13,7 @@ dependencies:
     path: ../../../packages/bloc
   flutter_bloc:
     path: ../../../packages/flutter_bloc
-  url_launcher: ^6.0.0-nullsafety.6
+  url_launcher: ^6.0.0
   common_github_search:
     path: ../common_github_search