feat!: Use Rack Events By Default #1990

Job	Run time
action_pack / ubuntu-latest	30s
action_view / ubuntu-latest	2m 44s
active_job / ubuntu-latest	5m 46s
active_model_serializers / ubuntu-latest	1m 21s
active_record / ubuntu-latest	1m 57s
active_support / ubuntu-latest	2m 18s
all / ubuntu-latest	2m 29s
aws_sdk / ubuntu-latest	8m 5s
base / ubuntu-latest	1m 37s
concurrent_ruby / ubuntu-latest	2m 46s
delayed_job / ubuntu-latest	1m 28s
ethon / ubuntu-latest	4m 2s
excon / ubuntu-latest	2m 17s
faraday / ubuntu-latest	3m 54s
grape / ubuntu-latest	27s
graphql / ubuntu-latest	1m 32s
gruf / ubuntu-latest	1m 12s
http / ubuntu-latest	1m 33s
http_client / ubuntu-latest	46s
koala / ubuntu-latest	44s
lmdb / ubuntu-latest	1m 24s
net_http / ubuntu-latest	1m 52s
rack / ubuntu-latest	1m 16s
rails / ubuntu-latest	37s
restclient / ubuntu-latest	2m 55s
rspec / ubuntu-latest	1m 41s
sinatra / ubuntu-latest	3m 39s
	1h 0m 52s

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