Bump analyzer from 8.3.0 to 8.4.0 (#4693)

pubspec.lock

diff --git a/pubspec.lock b/pubspec.lock
index 0b54aee..a9094e1 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -5,18 +5,18 @@
     dependency: transitive
     description:
       name: _fe_analyzer_shared
-      sha256: "0eb33edbbe99a02e73b8bbeb6f2b65972023d902117ee8d1bf0ea1a79f83aa7b"
+      sha256: c209688d9f5a5f26b2fb47a188131a6fb9e876ae9e47af3737c0b4f58a93470d
       url: "https://pub.dev"
     source: hosted
-    version: "90.0.0"
+    version: "91.0.0"
   analyzer:
     dependency: "direct main"
     description:
       name: analyzer
-      sha256: "711e3a890bb529bf55f07d73b8706f4b7504ad77e90d2f205626b116c048583f"
+      sha256: a40a0cee526a7e1f387c6847bd8a5ccbf510a75952ef8a28338e989558072cb0
       url: "https://pub.dev"
     source: hosted
-    version: "8.3.0"
+    version: "8.4.0"
   args:
     dependency: "direct main"
     description:

pubspec.yaml

diff --git a/pubspec.yaml b/pubspec.yaml
index da9e2c2..a701207 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,7 +4,7 @@
   sdk: ^3.7.0
 
 dependencies:
-  analyzer: ^8.3.0
+  analyzer: ^8.4.0
   args: ^2.7.0
   async: ^2.13.0
   cli_util: ^0.4.2