Update rustix requirement from 0.38.15 to 1.0.7 (#49)

Updates the requirements on [rustix](https://github.com/bytecodealliance/rustix) to permit the latest version.
- [Release notes](https://github.com/bytecodealliance/rustix/releases)
- [Changelog](https://github.com/bytecodealliance/rustix/blob/main/CHANGES.md)
- [Commits](bytecodealliance/rustix@v0.38.15...v1.0.7)

---
updated-dependencies:
- dependency-name: rustix
  dependency-version: 1.0.7
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Taiki Endo <[email protected]>

Author: dependabot[bot]

Cargo.toml

@@ -18,7 +18,7 @@ futures-core = "0.3.26"
 [target.'cfg(unix)'.dependencies]
 async-io = "2.0.0"
 futures-io = "0.3.26"
-rustix = { version = "0.38.15", default-features = false, features = ["process", "std"] }
+rustix = { version = "1.0.7", default-features = false, features = ["process", "std"] }
 signal-hook-registry = "1.4.0"
 
 [target.'cfg(windows)'.dependencies]

src/lib.rs

@@ -96,7 +96,7 @@ mod signum {
         ($rustix_name:ident, $raw_value:literal) => {{
             #[cfg(unix)]
             {
-                rustix::process::Signal::$rustix_name as c_int
+                rustix::process::Signal::$rustix_name.as_raw()
             }
 
             #[cfg(windows)]
@@ -107,35 +107,35 @@ mod signum {
     }
 
     // Define these ourselves.
-    pub const SIGHUP: c_int = sig!(Hup, 1);
-    pub const SIGINT: c_int = sig!(Int, 2);
-    pub const SIGQUIT: c_int = sig!(Quit, 3);
-    pub const SIGILL: c_int = sig!(Ill, 4);
-    pub const SIGTRAP: c_int = sig!(Trap, 5);
-    pub const SIGABRT: c_int = sig!(Abort, 6);
-    pub const SIGFPE: c_int = sig!(Fpe, 8);
-    pub const SIGKILL: c_int = sig!(Kill, 9);
-    pub const SIGSEGV: c_int = sig!(Segv, 11);
-    pub const SIGPIPE: c_int = sig!(Pipe, 13);
-    pub const SIGALRM: c_int = sig!(Alarm, 14);
-    pub const SIGTERM: c_int = sig!(Term, 15);
-    pub const SIGTTIN: c_int = sig!(Ttin, 21);
-    pub const SIGTTOU: c_int = sig!(Ttou, 22);
-    pub const SIGXCPU: c_int = sig!(Xcpu, 24);
-    pub const SIGXFSZ: c_int = sig!(Xfsz, 25);
-    pub const SIGVTALRM: c_int = sig!(Vtalarm, 26);
-    pub const SIGPROF: c_int = sig!(Prof, 27);
-    pub const SIGWINCH: c_int = sig!(Winch, 28);
-    pub const SIGCHLD: c_int = sig!(Child, 17);
-    pub const SIGBUS: c_int = sig!(Bus, 7);
-    pub const SIGUSR1: c_int = sig!(Usr1, 10);
-    pub const SIGUSR2: c_int = sig!(Usr2, 12);
-    pub const SIGCONT: c_int = sig!(Cont, 18);
-    pub const SIGSTOP: c_int = sig!(Stop, 19);
-    pub const SIGTSTP: c_int = sig!(Tstp, 20);
-    pub const SIGURG: c_int = sig!(Urg, 23);
-    pub const SIGIO: c_int = sig!(Io, 29);
-    pub const SIGSYS: c_int = sig!(Sys, 31);
+    pub const SIGHUP: c_int = sig!(HUP, 1);
+    pub const SIGINT: c_int = sig!(INT, 2);
+    pub const SIGQUIT: c_int = sig!(QUIT, 3);
+    pub const SIGILL: c_int = sig!(ILL, 4);
+    pub const SIGTRAP: c_int = sig!(TRAP, 5);
+    pub const SIGABRT: c_int = sig!(ABORT, 6);
+    pub const SIGFPE: c_int = sig!(FPE, 8);
+    pub const SIGKILL: c_int = sig!(KILL, 9);
+    pub const SIGSEGV: c_int = sig!(SEGV, 11);
+    pub const SIGPIPE: c_int = sig!(PIPE, 13);
+    pub const SIGALRM: c_int = sig!(ALARM, 14);
+    pub const SIGTERM: c_int = sig!(TERM, 15);
+    pub const SIGTTIN: c_int = sig!(TTIN, 21);
+    pub const SIGTTOU: c_int = sig!(TTOU, 22);
+    pub const SIGXCPU: c_int = sig!(XCPU, 24);
+    pub const SIGXFSZ: c_int = sig!(XFSZ, 25);
+    pub const SIGVTALRM: c_int = sig!(VTALARM, 26);
+    pub const SIGPROF: c_int = sig!(PROF, 27);
+    pub const SIGWINCH: c_int = sig!(WINCH, 28);
+    pub const SIGCHLD: c_int = sig!(CHILD, 17);
+    pub const SIGBUS: c_int = sig!(BUS, 7);
+    pub const SIGUSR1: c_int = sig!(USR1, 10);
+    pub const SIGUSR2: c_int = sig!(USR2, 12);
+    pub const SIGCONT: c_int = sig!(CONT, 18);
+    pub const SIGSTOP: c_int = sig!(STOP, 19);
+    pub const SIGTSTP: c_int = sig!(TSTP, 20);
+    pub const SIGURG: c_int = sig!(URG, 23);
+    pub const SIGIO: c_int = sig!(IO, 29);
+    pub const SIGSYS: c_int = sig!(SYS, 31);
 }
 
 macro_rules! define_signal_enum {