change defaults for requestFactory from cozy-konnector-libs

[edas]

See https://github.com/konnectors/libs/blob/master/packages/cozy-konnector-libs/src/libs/request.js#L64

Expected result

Unless explicitly requested by the user, any connection with an host with an invalid SSL/TLS certificate.

Actual result

strictSSL is deactivated by default in requestFactory, meaning all invalid certificates won't generate errors. This is not an important issue (it would be very difficult to exploit) but it should not be leaved as is anyway.

This is mandatory for #230 (request/request#1049)