update lints, require Dart 3.4 (dart-lang/yaml#167)

pkgs/yaml/.github/workflows/test-package.yml

diff --git a/pkgs/yaml/.github/workflows/test-package.yml b/pkgs/yaml/.github/workflows/test-package.yml
index c80712a..ce2b90d 100644
--- a/pkgs/yaml/.github/workflows/test-package.yml
+++ b/pkgs/yaml/.github/workflows/test-package.yml
@@ -47,7 +47,7 @@
       matrix:
         # Add macos-latest and/or windows-latest if relevant for this package.
         os: [ubuntu-latest]
-        sdk: [3.0.0, dev]
+        sdk: [3.4, dev]
     steps:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
       - uses: dart-lang/setup-dart@f0ead981b4d9a35b37f30d36160575d60931ec30

pkgs/yaml/CHANGELOG.md

diff --git a/pkgs/yaml/CHANGELOG.md b/pkgs/yaml/CHANGELOG.md
index c246967..37e5660 100644
--- a/pkgs/yaml/CHANGELOG.md
+++ b/pkgs/yaml/CHANGELOG.md
@@ -1,6 +1,6 @@
 ## 3.1.3-wip
 
-* Require Dart 3.0
+* Require Dart 3.4
 
 ## 3.1.2
 

pkgs/yaml/pubspec.yaml

diff --git a/pkgs/yaml/pubspec.yaml b/pkgs/yaml/pubspec.yaml
index e6b6f15..09b6541 100644
--- a/pkgs/yaml/pubspec.yaml
+++ b/pkgs/yaml/pubspec.yaml
@@ -7,7 +7,7 @@
  - config-format
 
 environment:
-  sdk: ^3.0.0
+  sdk: ^3.4.0
 
 dependencies:
   collection: ^1.15.0
@@ -15,6 +15,6 @@
   string_scanner: ^1.1.0
 
 dev_dependencies:
-  dart_flutter_team_lints: ^2.0.0
+  dart_flutter_team_lints: ^3.0.0
   path: ^1.8.0
-  test: ^1.16.0
+  test: ^1.16.6