(maint) reset warning count after testing filtering

After each of those test, the `warning_count` was 100 and other
tests for warnings would fail as they would have been swallowed.

Author: DavidS

spec/puppet/resource_api/type_definition_spec.rb

@@ -119,6 +119,10 @@
         Puppet.settings[:strict] = strict_level
       end
 
+      after(:each) do
+        Puppet::ResourceApi.warning_count = 0
+      end
+
       context 'when puppet strict is set to default (warning)' do
         it 'displays up to 100 warnings' do
           expect(Puppet).to receive(:warning).with(message).exactly(100).times
@@ -156,6 +160,10 @@
         Puppet.settings[:strict] = strict_level
       end
 
+      after(:each) do
+        Puppet::ResourceApi.warning_count = 0
+      end
+
       context 'when puppet strict is set to default (warning)' do
         it 'displays up to 100 warnings' do
           expect(Puppet).to receive(:warning).with(message).exactly(100).times