fix!: Drop DelayedJob ActiveRecord in Tests #1897

Job	Run time
action_pack / ubuntu-latest	3m 3s
action_view / ubuntu-latest	2m 12s
active_job / ubuntu-latest	4m 40s
active_model_serializers / ubuntu-latest	1m 31s
active_record / ubuntu-latest	1m 36s
active_support / ubuntu-latest	2m 3s
all / ubuntu-latest	2m 25s
aws_sdk / ubuntu-latest	7m 39s
base / ubuntu-latest	1m 31s
concurrent_ruby / ubuntu-latest	3m 7s
delayed_job / ubuntu-latest	1m 29s
ethon / ubuntu-latest	2m 54s
excon / ubuntu-latest	1m 59s
faraday / ubuntu-latest	3m 30s
grape / ubuntu-latest	6m 15s
graphql / ubuntu-latest	1m 40s
gruf / ubuntu-latest	43s
http / ubuntu-latest	1m 26s
http_client / ubuntu-latest	41s
koala / ubuntu-latest	43s
lmdb / ubuntu-latest	1m 12s
net_http / ubuntu-latest	1m 47s
rack / ubuntu-latest	1m 18s
rails / ubuntu-latest	3m 21s
restclient / ubuntu-latest	2m 48s
rspec / ubuntu-latest	1m 51s
sinatra / ubuntu-latest	3m 27s
	1h 6m 51s

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