Fix PrometheusTrace with multiple tracers

Author: simpl1g

lib/graphql/tracing/prometheus_trace.rb

@@ -25,7 +25,7 @@ def initialize(client: PrometheusExporter::Client.default, keys_whitelist: ["exe
       }.each do |trace_method, platform_key|
         module_eval <<-RUBY, __FILE__, __LINE__
           def #{trace_method}(**data, &block)
-            instrument_execution("#{platform_key}", "#{trace_method}", &block)
+            instrument_execution("#{platform_key}", "#{trace_method}") { super }
           end
         RUBY
       end