Use defaults

Author: brianquinlan

.github/workflows/cupertino.yml

@@ -25,8 +25,6 @@ jobs:
     uses: dart-lang/ecosystem/.github/workflows/health.yaml@main
     with:
       use-flutter: true
-      fail_on: "changelog,license,coverage,breaking,do-not-submit,leaking"
-      warn_on: ""
       sdk: stable
   verify:
     name: Format & Analyze & Test

.github/workflows/dart_health.yaml

@@ -29,8 +29,6 @@ jobs:
     uses: dart-lang/ecosystem/.github/workflows/health.yaml@main
     with:
       sdk: stable
-      fail_on: "changelog,license,coverage,breaking,do-not-submit,leaking"
-      warn_on: ""
       ignore_packages: 'pkgs/cronet_http,pkgs/cupertino_http,pkgs/flutter_http_example,pkgs/java_http,pkgs/ok_http'
     permissions:
       pull-requests: write