roller extarcts wrong active channel

[mtsitrin]

roller looks for last connection in the
``
to use as active connection

but the list isn't sorted correctly

["ORDER_ORDERED","ORDER_UNORDERED"]}],"state":"STATE_OPEN","counterparty":{"client_id":"01-dymint-442","connection_id":"connection-10121","prefix":{"key_prefix":"aWJj"}},"delay_period":"0"}
{"id":"connection-89","client_id":"07-tendermint-0","versions":[{"identifier":"1","features":["ORDER_ORDERED","ORDER_UNORDERED"]}],"state":"STATE_OPEN","counterparty":{"client_id":"01-dymint-442","connection_id":"connection-10122","prefix":{"key_prefix":"aWJj"}},"delay_period":"0"}
{"id":"connection-9","client_id":"07-tendermint-0","versions":[{"identifier":"1","features":["ORDER_ORDERED","ORDER_UNORDERED"]}],"state":"STATE_OPEN","counterparty":{"client_id":"01-dymint-442","connection_id":"connection-4973","prefix":{"key_prefix":"aWJj"}},"delay_period":"0"}
{"id":"connection-90","client_id":"07-tendermint-0","versions":[{"identifier":"1","features":["ORDER_ORDERED","ORDER_UNORDERED"]}],"state":"STATE_OPEN","counterparty":{"client_id":"01-dymint-442","connection_id":"connection-10123","prefix":{"key_prefix":"aWJj"}},"delay_period":"0"}

as we can see connection-9 is higher than connection-89

we should read the active connection from the relayer config file