transition to oos from oos for load balanced multinode rpc #487

Job	Run time
detect-modules	4s
golangci-lint (chains)	44s
golangci-lint (tools/evm-chain-bindings)	1m 21s
golangci-lint (tools/evm-chain-bindings/examples/basic)	24s
golangci-lint (multinode)	51s
golangci-lint (metrics)	45s
golangci-lint (capabilities)	48s
golangci-lint-result	3s
	5m 0s

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