make windows/mac consistent with linux (#31936)

.cirrus.yml

@@ -112,6 +112,7 @@ task:
     fingerprint_script: echo %OS% & type bin\internal\engine.version
   setup_script:
     - bin\flutter.bat config --no-analytics
+    - bin\flutter.bat doctor -v
     - bin\flutter.bat update-packages
     - git fetch origin master
   test_all_script:
@@ -228,6 +229,7 @@ task:
     fingerprint_script: echo $OS; cat bin/internal/engine.version
   setup_script:
     - bin/flutter config --no-analytics
+    - bin/flutter doctor -v
     - bin/flutter update-packages
   test_all_script: |
     ulimit -S -n 2048 # https://github.com/flutter/flutter/issues/2976