Update rustls-ffi version to fix vulnerability

[GreeFine]

When auditing my crate, I found out that this package needed an update.

Crate: rustls
Version: 0.20.9
Title: rustls::ConnectionCommon::complete_io could fall into an infinite loop based on network input
Date: 2024-04-19
ID: RUSTSEC-2024-0336
URL: https://rustsec.org/advisories/RUSTSEC-2024-0336
Severity: 7.5 (high)
Solution: Upgrade to >=0.23.5 OR >=0.22.4, <0.23.0 OR >=0.21.11, <0.22.0
Dependency tree:
rustls 0.20.9
└── rustls-ffi 0.8.2
. └── curl-sys 0.4.72+curl-8.6.0
. . └── curl 0.4.46
. . . └── faker 0.1.0

I updated rustls-ffi to the latest version, and it seems to work with no additional changes.

What I did to test:

• cargo clean
• cargo build --release
• cargo build --release -F rustls
• cargo test --release
• cargo test --release -F rustls

[ehuss]

I'm going to close as fixed by #562. Thanks!