gclient: changing the default behavior to require TLS certificate verification

[nyxfqq]

Description

Currently, the GHTTP client in our project is configured by default to skip TLS certificate verification. This default setting undermines security by exposing connections to potential man-in-the-middle attacks and compromising data integrity.

I propose changing the default behavior to require TLS certificate verification. This enhancement ensures secure, encrypted, and authenticated communications. For development flexibility, an explicit configuration option should be added to selectively disable verification when necessary.

Additional

No response