security: Disable TLS1.0/1.1 for ureq-native-tls

[Property404]

Description

Explicity opt-out of old TLS versions when using the ureq-native-tls feature. Rust-native-tls enables these outdated TLS versions by default

Motivation and Context

TLS 1.0 and 1.1 have been deprecated since 2021. Enabling TLS 1.0/1.1 has possibility (albeit a low one) of introducing a security vulnerability. All modern clients and servers have supported 1.2 for years, so this should be an issue

Dependencies

None

Type of change

• [ *] Bug fix (non-breaking change which fixes an issue)

How has this been tested?

Locally only, through cargo-test and cargo-clippy

Is this change properly documented?

Added a short comment explaining reasoning

[ramsayleung]

Thanks for your contribution :)