API Generator and Removing support of Ruby 2 #576

Job	Run time
test-opensearch (2.5)	2m 18s
test-opensearch-faraday-1 (2.6)	2m 23s
test-opensearch (2.6)	2m 29s
test-opensearch-faraday-1 (2.7)	2m 20s
test-opensearch (2.7)	3m 27s
test-opensearch-faraday-1 (3.0)	2m 1s
test-opensearch (3.0)	1m 59s
test-opensearch-faraday-1 (3.1)	3m 8s
test-opensearch (3.1)	1m 56s
test-opensearch-faraday-1 (3.2)	2m 0s
test-opensearch (3.2)	1m 59s
test-opensearch-faraday-1 (3.3)	1m 57s
test-opensearch (3.3)	2m 0s
test-opensearch-faraday-1 (jruby-9.3)	1m 46s
test-opensearch (jruby-9.3)	1m 46s
test-opensearch-security (2.5)	2m 31s
test-opensearch-security (2.6)	2m 31s
test-opensearch-security (2.7)	2m 20s
test-opensearch-security (3.0)	2m 2s
test-opensearch-security (3.1)	2m 7s
test-opensearch-security (3.2)	1m 58s
test-opensearch-security (3.3)	2m 0s
test-opensearch-security (jruby-9.3)	1m 45s
	50m 43s

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