fix(ci): bump Flutter 3.29.2 → 3.41.5 (Dart 3.8.0+)

flutter_lints 5.x and flutter_svg 2.2.3+ require Dart >=3.8.0.
Flutter 3.29.2 ships Dart 3.7.2 which is too old for current stable deps.
Flutter 3.41.5 ships Dart 3.8.x — resolves all dependency conflicts.

Updated in all 5 workflows: analyze, test, coverage, golden, benchmark.

Author: Nguyễn Tuấn Việt

.github/workflows/analyze.yml

@@ -18,7 +18,7 @@ name: Pre-flight Checks
 # ─────────────────────────────────────────────────────────────────────────────
 
 env:
-  FLUTTER_VERSION: "3.29.2"
+  FLUTTER_VERSION: "3.41.5"
 
 on:
   push:

.github/workflows/benchmark.yml

@@ -14,7 +14,7 @@ name: Performance Regression
 # ─────────────────────────────────────────────────────────────────────────────
 
 env:
-  FLUTTER_VERSION: "3.29.2"   # keep in sync with golden.yml
+  FLUTTER_VERSION: "3.41.5"   # keep in sync with golden.yml
 
 on:
   pull_request:

.github/workflows/coverage.yml

@@ -11,7 +11,7 @@ name: Coverage
 # ─────────────────────────────────────────────────────────────────────────────
 
 env:
-  FLUTTER_VERSION: "3.29.2"
+  FLUTTER_VERSION: "3.41.5"
 
 on:
   push:

.github/workflows/golden.yml

@@ -19,7 +19,7 @@ name: Visual Regression
 # ─────────────────────────────────────────────────────────────────────────────
 
 env:
-  FLUTTER_VERSION: "3.29.2"   # ← single source of truth; bump here + update-goldens
+  FLUTTER_VERSION: "3.41.5"   # ← single source of truth; bump here + update-goldens
   FONT_PACKAGES: >-
     fonts-noto
     fonts-noto-cjk

.github/workflows/test.yml

@@ -20,7 +20,7 @@ name: Core Validation
 # ─────────────────────────────────────────────────────────────────────────────
 
 env:
-  FLUTTER_VERSION: "3.29.2"
+  FLUTTER_VERSION: "3.41.5"
 
 on:
   push: