track upstream Rustls 0.22.x alpha changes.

Cargo.toml

@@ -23,11 +23,12 @@ read_buf = ["rustls/read_buf"]
 
 [dependencies]
 # Keep in sync with RUSTLS_CRATE_VERSION in build.rs
-rustls = { version = "=0.21.9", features = [ "dangerous_configuration" ] }
-rustls-webpki = "0.101.0"
+rustls = { version = "=0.22.0-alpha.4", features = [ "ring" ]}
+rustls-webpki = "0.102.0-alpha.6"
+pki-types = { package = "rustls-pki-types", version = "0.2.1", features = ["std"] }
 libc = "0.2"
 sct = "0.7"
-rustls-pemfile = "1.0.3"
+rustls-pemfile = { version = "2.0.0-alpha.1" }
 log = "0.4.17"
 
 [lib]

build.rs

@@ -3,7 +3,7 @@ use std::io::Write;
 use std::{env, fs, path::PathBuf};
 
 // Keep in sync with Cargo.toml.
-const RUSTLS_CRATE_VERSION: &str = "0.21.9";
+const RUSTLS_CRATE_VERSION: &str = "0.22.0-alpha.4";
 
 fn main() {
     let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());