Update windows-sys, async-std and hermet versions.

Author: sunfishcode

Cargo.toml

@@ -21,7 +21,7 @@ rust-version = "1.63"
 os_pipe = { version = "1.0.0", features = ["io_safety"], optional = true }
 
 # Optionally depend on async-std just to provide impls for its types.
-async-std = { version = "1.12.0", optional = true }
+async-std = { version = ">=1.12, <=1.13", optional = true }
 # Optionally depend on tokio to implement traits for its types.
 tokio = { version = "1.6.0", features = ["io-std", "fs", "net", "process"], optional = true }
 # Optionally depend on socket2 to implement traits for its types.
@@ -30,13 +30,13 @@ socket2 = { version = "0.5.0", optional = true }
 mio = { version = "0.8.0", features = ["net", "os-ext"], optional = true }
 
 [target.'cfg(target_os = "hermit")'.dependencies]
-hermit-abi = { version = "0.3", optional = true }
+hermit-abi = { version = ">=0.3, <=0.4", optional = true }
 
 [target.'cfg(not(windows))'.dependencies]
 libc = { version = "0.2.96", optional = true }
 
 [target.'cfg(windows)'.dependencies.windows-sys]
-version = "0.52.0"
+version = ">=0.52, <=0.59"
 optional = true
 features = [
     "Win32_Foundation",