fixup! feat: fix compatibility with Puma 7

Author: bdewater-thatch

instrumentation/puma/test/opentelemetry/instrumentation/puma/plugin_test.rb

@@ -24,7 +24,7 @@
   end
 
   it 'flushes providers on stop' do
-    event_name = ::Puma::Const::PUMA_VERSION < '7' ? :on_booted : :after_booted
+    event_name = Puma::Const::PUMA_VERSION < '7' ? :on_booted : :after_booted
     @launcher.events.public_send(event_name) do
       sleep 1.1 unless mri?
       @launcher.stop