fix(connector-fabric): cve-2020-7774 Prototype Pollution high sev. hy…

…perledger#745

Attempt to get away with upgradaing the fabric-network
dependency to the current latest 1.4.x which is 17.
Fingers crossed that this does not introduce other regressions.

Fixes hyperledger#745

Signed-off-by: Peter Somogyvari <peter.somogyvari@accenture.com>