Add doctor call temporarily for debugging

Author: stuartmorgan-g

.cirrus.yml

@@ -126,6 +126,7 @@ task:
           CHANNEL: "stable"
       build_script:
         - flutter config --enable-linux-desktop
+        - flutter doctor -v
         - ./script/tool_runner.sh build-examples --linux
       native_test_script:
         - ./script/tool_runner.sh native-test --linux --no-integration