Remove native-tls dependency from reqwest and SDK

- Set default-features = false for reqwest in workspace Cargo.toml,
  keeping stream, json, rustls-tls, and http2 features
- Fix xtask-llm-benchmark to also disable reqwest default features
  (was re-enabling native-tls via Cargo feature unification)
- Remove native-tls version pin from Rust SDK (no longer needed
  since nothing depends on native-tls anymore)

This fully removes the native-tls -> openssl-sys dependency chain
from reqwest 0.12. The only remaining openssl-sys dependency is
from git2/libgit2-sys (unrelated to TLS).

Author: clockwork-labs-bot

Cargo.lock

@@ -263,7 +263,7 @@ rayon = "1.8"
 rayon-core = "1.11.0"
 rcgen = { version = "0.14.5", features = ["pem", "x509-parser", "crypto", "ring"] }
 regex = "1"
-reqwest = { version = "0.12", features = ["stream", "json", "rustls-tls"] }
+reqwest = { version = "0.12", default-features = false, features = ["stream", "json", "rustls-tls", "http2"] }
 rolldown = { git = "https://github.com/rolldown/rolldown.git", tag = "v1.0.0-rc.3" }
 rolldown_common = { git = "https://github.com/rolldown/rolldown.git", tag = "v1.0.0-rc.3" }
 rolldown_error = { git = "https://github.com/rolldown/rolldown.git", tag = "v1.0.0-rc.3" }

Cargo.toml

@@ -36,9 +36,6 @@ prometheus.workspace = true
 rand.workspace = true
 tokio.workspace = true
 tokio-tungstenite.workspace = true
-# native-tls 0.2.17 fails to compile with Rust 1.93.0 due non-exhaustive
-# matching in upstream code. Pin until upstream ships a compatible release.
-native-tls = "=0.2.14"
 
 [dev-dependencies]
 # for quickstart-chat and cursive-chat examples

sdks/rust/Cargo.toml

@@ -23,7 +23,7 @@ dotenvy = "0.15"
 async-trait = "0.1.89"
 tokio = { version = "1", features = ["rt-multi-thread", "macros"] }
 urlencoding = "2.1.3"
-reqwest = { version = "0.12", features = ["json"] }
+reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }
 futures = "0.3.31"
 regex = "1"
 tempfile = "3.23.0"