Bump Dart SDK to 3.7 (#159812)

dev/benchmarks/complex_layout/pubspec.yaml

@@ -2,7 +2,7 @@ name: complex_layout
 description: A benchmark of a relatively complex layout.
 
 environment:
-  sdk: '>=3.2.0-0 <4.0.0'
+  sdk: ^3.7.0-0
 
 dependencies:
   flutter:

dev/benchmarks/macrobenchmarks/pubspec.yaml

@@ -2,7 +2,7 @@ name: macrobenchmarks
 description: Performance benchmarks using flutter drive.
 
 environment:
-  sdk: '>=3.2.0-0 <4.0.0'
+  sdk: ^3.7.0-0
 
 dependencies:
   flutter:

dev/benchmarks/microbenchmarks/pubspec.yaml

@@ -2,7 +2,7 @@ name: microbenchmarks
 description: Small benchmarks for very specific parts of the Flutter framework.
 
 environment:
-  sdk: '>=3.2.0-0 <4.0.0'
+  sdk: ^3.7.0-0
 
 dependencies:
   meta: 1.15.0

dev/benchmarks/multiple_flutters/module/pubspec.yaml

@@ -4,7 +4,7 @@ description: A module that is embedded in the multiple_flutters benchmark test.
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.2.0-0 <4.0.0'
+  sdk: ^3.7.0-0
 
 dependencies:
   flutter:

dev/benchmarks/platform_channels_benchmarks/pubspec.yaml

@@ -5,7 +5,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.2.0-0 <4.0.0'
+  sdk: ^3.7.0-0
 
 dependencies:
   flutter:

dev/benchmarks/platform_views_layout/pubspec.yaml

@@ -2,7 +2,7 @@ name: platform_views_layout
 description: A benchmark for platform views.
 
 environment:
-  sdk: '>=3.2.0-0 <4.0.0'
+  sdk: ^3.7.0-0
 
 dependencies:
   flutter:

dev/benchmarks/platform_views_layout_hybrid_composition/pubspec.yaml

@@ -2,7 +2,7 @@ name: platform_views_layout_hybrid_composition
 description: A benchmark for platform views, using hybrid composition on android.
 
 environment:
-  sdk: '>=3.2.0-0 <4.0.0'
+  sdk: ^3.7.0-0
 
 dependencies:
   flutter:

dev/benchmarks/test_apps/stocks/pubspec.yaml

@@ -1,7 +1,7 @@
 name: stocks
 
 environment:
-  sdk: '>=3.2.0-0 <4.0.0'
+  sdk: ^3.7.0-0
 
 dependencies:
   flutter: