Bump dependency version constraints of analyzer, meta, pedantic.

The analyzer constraint needed to be bumped; errors were found using `pub downgrade`.

The meta and pedantic APIs can introduce conflicting members (`unawaited`) in certain combinations.

PiperOrigin-RevId: 319884416
diff --git a/pubspec.yaml b/pubspec.yaml
index f89993c..9a89f1b 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -5,21 +5,21 @@
 homepage: https://github.com/dart-lang/mockito
 
 environment:
-  sdk: '>=2.4.0 <3.0.0'
+  sdk: '>=2.7.0 <3.0.0'
 
 dependencies:
-  analyzer: ^0.38.0
-  build: ^1.1.3
-  code_builder: ^3.2.0
+  analyzer: ^0.39.11
+  build: ^1.3.0
+  code_builder: ^3.4.0
   collection: ^1.1.0
   dart_style: ^1.3.0
   matcher: ^0.12.3
-  meta: ^1.0.4
+  meta: '>=1.0.4 <1.2.0'
   test_api: ^0.2.1
 
 dev_dependencies:
   build_runner: ^1.0.0
-  build_test: ^0.10.0
+  build_test: ^1.1.0
   build_web_compilers: '>=1.0.0 <3.0.0'
-  pedantic: ^1.3.0
+  pedantic: '>=1.3.0 <1.9.1'
   test: ^1.5.1