Flutter version to 3.44.3

cloud_build/flutter_agy_docker/Dockerfile.base

diff --git a/cloud_build/flutter_agy_docker/Dockerfile.base b/cloud_build/flutter_agy_docker/Dockerfile.base
index d0389bd..33ffd9d 100644
--- a/cloud_build/flutter_agy_docker/Dockerfile.base
+++ b/cloud_build/flutter_agy_docker/Dockerfile.base
@@ -8,7 +8,7 @@
 FROM ubuntu:24.04 AS flutter-fetcher
 
 # 1. Define the ARG with a fallback default version
-ARG FLUTTER_VERSION="3.44.2"
+ARG FLUTTER_VERSION="3.44.3"
 
 ENV TZ="America/Los_Angeles" \
     DEBIAN_FRONTEND=noninteractive \