fix analysis warning by constraining lower end of compatibility

MoralCode · MoralCode · commit 152645636eda · 2025-04-22T10:05:28.000-04:00
diff --git a/pubspec.yaml b/pubspec.yaml
@@ -4,7 +4,7 @@ version: 0.1.6
 repository: https://github.com/CrewLAB/c2bluetooth
 
 environment:
-  sdk: ">=2.12.0 <3.0.0"
+  sdk: ">=2.15.0 <3.0.0"
   flutter: ">=1.17.0"
 
 dependencies:
