Update and fix lints, require Dart 3.1

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        sdk: [3.0.0, dev]
+        sdk: [3.1, dev]
 
     steps:
       # These are the latest versions of the github actions; dependabot will

CHANGELOG.md

@@ -4,7 +4,7 @@
 - Fixed `Matrix3.rotationY` direction (Contributed by tlserver, moritzblume)
 - Added an operator== to Quaternion so that two instances of quaternions can
   be evaluated for equality.
-- Require Dart 3.0
+- Require Dart 3.1
 
 ## 2.1.4
 

lib/hash.dart

@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 @Deprecated('Use Object.hashAll instead')
-library hash;
+library;
 
 ///
 /// Generates a hash code for multiple [objects].

pubspec.yaml

@@ -4,13 +4,13 @@ description: A Vector Math library for 2D and 3D applications.
 repository: https://github.com/google/vector_math.dart
 
 environment:
-  sdk: ^3.0.0
+  sdk: ^3.1.0
 
 dev_dependencies:
   benchmark_harness: ^2.0.0
-  build_runner: ^2.0.0
-  build_test: ^2.0.0
-  build_web_compilers: ^4.0.0
-  dart_flutter_team_lints: ^2.0.0
+  build_runner: ^2.2.1
+  build_test: ^2.1.2
+  build_web_compilers: ^4.0.3
+  dart_flutter_team_lints: ^3.0.0
   path: ^1.8.0
-  test: ^1.16.0
+  test: ^1.21.6