chore(deps): update kong docker tag to v3.8 - autoclosed #434

Job	Run time
lint-test (kong)	7m 50s
integration-test (1.25.16, kong)	2m 3s
lint-test (ingress)	3m 15s
golden-tests	29s
integration-test (1.25.16, ingress)	2m 0s
lint-test (gateway-operator)	4m 46s
lint	1m 26s
integration-test (1.25.16, gateway-operator)	1m 47s
integration-test (1.26.15, kong)	2m 0s
integration-test (1.26.15, ingress)	1m 48s
oldversion-integration-test (2.10, 3.3, kong)	1m 39s
oldversion-integration-test (2.10, 3.3, ingress)	1m 36s
integration-test (1.26.15, gateway-operator)	1m 44s
oldversion-integration-test (2.10, 3.2, kong)	1m 35s
integration-test (1.27.13, kong)	1m 44s
oldversion-integration-test (2.10, 3.2, ingress)	1m 56s
integration-test (1.27.13, ingress)	1m 36s
oldversion-integration-test (2.11, 3.3, kong)	1m 42s
integration-test (1.27.13, gateway-operator)	1m 34s
oldversion-integration-test (2.11, 3.3, ingress)	1m 31s
integration-test (1.28.9, kong)	1m 37s
oldversion-integration-test (2.11, 3.2, kong)	1m 37s
integration-test (1.28.9, ingress)	1m 34s
oldversion-integration-test (2.11, 3.2, ingress)	1m 38s
integration-test (1.28.9, gateway-operator)	1m 37s
integration-test (1.29.4, kong)	1m 43s
integration-test (1.29.4, ingress)	1m 38s
integration-test (1.29.4, gateway-operator)	1m 34s
integration-test (1.30.0, kong)	1m 37s
integration-test (1.30.0, ingress)	1m 43s
integration-test (1.30.0, gateway-operator)	1m 32s
passed	1s
	1h 1m 52s

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