Updated opensearch-ruby to reflect the latest OpenSearch API spec (20… #661

Job	Run time
test-opensearch-security (3.0)	5m 2s
test-opensearch (3.0)	6h 0m 13s
test-opensearch-security (3.4)	2m 51s
test-opensearch-faraday-1 (3.0)	2m 1s
test-opensearch-security (jruby-9.4)	2m 52s
test-opensearch-faraday-1 (3.4)	2m 4s
test-opensearch (3.1)	6h 0m 16s
test-opensearch (3.2)	6h 0m 15s
test-opensearch-faraday-1 (jruby-9.4)	3m 15s
test-opensearch (3.3)	6h 0m 13s
test-opensearch (3.4)	6h 0m 13s
test-opensearch (jruby-9.4)	3m 20s
	1d 6h 22m 35s

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