tests: introduce golden tests in kong chart #67

Job	Run time
lint-test (kong)	12m 13s
lint	1m 2s
lint-test (ingress)	2m 47s
go-tests	1m 31s
integration-test (1.23.13, kong)	3m 7s
integration-test (1.23.13, ingress)	2m 58s
oldversion-integration-test (2.10, 3.3, kong)	2m 57s
integration-test (1.24.7, kong)	2m 53s
oldversion-integration-test (2.10, 3.3, ingress)	2m 9s
integration-test (1.24.7, ingress)	2m 36s
oldversion-integration-test (2.10, 3.2, kong)	2m 9s
integration-test (1.25.9, kong)	2m 54s
oldversion-integration-test (2.10, 3.2, ingress)	1m 51s
integration-test (1.25.9, ingress)	2m 40s
oldversion-integration-test (2.11, 3.3, kong)	2m 33s
oldversion-integration-test (2.11, 3.3, ingress)	2m 4s
integration-test (1.26.4, kong)	3m 13s
oldversion-integration-test (2.11, 3.2, kong)	2m 29s
integration-test (1.26.4, ingress)	2m 59s
oldversion-integration-test (2.11, 3.2, ingress)	2m 8s
integration-test (1.27.1, kong)	3m 5s
integration-test (1.27.1, ingress)	2m 33s
passed	1s
	1h 4m 52s

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