API Generator and Removing support of Ruby 2 #578

Job	Run time
test-opensearch (2.5)	2m 22s
test-opensearch-faraday-1 (2.6)	2m 25s
test-opensearch (2.6)	2m 29s
test-opensearch-faraday-1 (2.7)	2m 17s
test-opensearch-security (2.5)	3m 18s
test-opensearch (2.7)	2m 21s
test-opensearch-faraday-1 (3.0)	2m 4s
test-opensearch (3.0)	2m 5s
test-opensearch-security (2.6)	2m 23s
test-opensearch-faraday-1 (3.1)	2m 3s
test-opensearch (3.1)	1m 57s
test-opensearch-security (2.7)	3m 17s
test-opensearch-faraday-1 (3.2)	2m 1s
test-opensearch (3.2)	1m 59s
test-opensearch-security (3.0)	1m 59s
test-opensearch-faraday-1 (3.3)	2m 4s
test-opensearch (3.3)	1m 58s
test-opensearch-security (3.1)	2m 3s
test-opensearch-faraday-1 (jruby-9.3)	2m 8s
test-opensearch (jruby-9.3)	2m 21s
test-opensearch-security (3.2)	2m 1s
test-opensearch-security (3.3)	2m 5s
test-opensearch-security (jruby-9.3)	1m 52s
	51m 32s

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