Bump golangci-lint to 1.56.2 #627

Job	Run time
Clean up generated files	1m 23s
Images	2m 16s
Build multi-arch images	2m 21s
Compilation	38s
Clusters	1m 36s
Clean up clusters	1m 34s
Deployment (operator)	2m 41s
E2E	2m 51s
Deployment (helm)	2m 10s
Multiple gateways support	1m 34s
Post mortem	2m 7s
Deployment (globalnet, operator)	2m 40s
Deployment (globalnet, helm)	2m 36s
Unit tests	1m 35s
Deployment (air-gap)	2m 54s
Deployment (air-gap, globalnet)	3m 25s
Deployment (air-gap, lighthouse)	3m 16s
Deployment (air-gap, ovn)	6m 23s
Deployment (dual-stack)	2m 55s
Deployment (ovn)	5m 41s
Deployment (ovn-ic)	6m 20s
Deployment (operator, lighthouse)	2m 34s
Deployment (helm, lighthouse)	2m 11s
Deployment (load-balancer)	3m 8s
Deployment (prometheus)	2m 36s
	1h 9m 25s

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