🧹 Modernize arista and network providers with Go idioms #16141

Job	Run time
go-mod	37s
Store event file	5s
golangci-lint	1m 48s
go-test	3m 3s
go-test-integration	34s
go-race	52s
golangci-lint-providers / lint	2m 15s
go-auto-approve	0s
	9m 14s

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