relayer: use `tcp://` prefix into the RPC url stuck the UI

[Pantani]

If you use tcp://0.0.0.0:26657 instead http://0.0.0.0:26657 stucks the relayer CLI UI

ignite relayer configure -a -r --ordered \
--source-account "alice" \
--source-rpc "tcp://0.0.0.0:26657/" \
--source-faucet "tcp://0.0.0.0:4500/" \
--source-port "monitoringc" \
--source-version "monitoring-1" \
--source-gasprice "0.0000025uspn" \
--source-prefix "spn" \
--source-gaslimit 400000 \
--source-client-id "07-tendermint-0" \
--target-account "alice" \
--target-rpc "tcp://0.0.0.0:26659/" \
--target-faucet "tcp://0.0.0.0:4501/" \
--target-port "monitoringp" \
--target-version "monitoring-1" \
--target-gasprice "0.0000025stake" \
--target-prefix "cosmos" \
--target-gaslimit 400000 \
--target-client-id "07-tendermint-0"