fix: agree one a single default runtime for the whole workspace

This fixes `cargo check --workspace` and rust-analyzer.

Also see <#1956>.

Author: crepererum

sqlx-cli/Cargo.toml

@@ -49,8 +49,8 @@ remove_dir_all = "0.7.0"
 
 [features]
 default = ["postgres", "sqlite", "mysql", "native-tls"]
-rustls = ["sqlx/runtime-tokio-rustls"]
-native-tls = ["sqlx/runtime-tokio-native-tls"]
+rustls = ["sqlx/runtime-async-std-rustls"]
+native-tls = ["sqlx/runtime-async-std-native-tls"]
 
 # databases
 mysql = ["sqlx/mysql"]