upgrade nix to 0.29.0

Summary:
Enable more features that are disabled by default and update call
sites.

Reviewed By: opsound, jasonwhite

Differential Revision: D66275420

fbshipit-source-id: 4969045de7751c7d16b6ed5c7411f04077eb0ddc

shed/slog_glog_fmt/Cargo.toml

@@ -30,7 +30,7 @@ regex = "1.9.2"
 thiserror = "2"
 
 [target.'cfg(target_os = "linux")'.dependencies]
-nix = "0.26.4"
+nix = { version = "0.29.0", features = ["dir", "event", "hostname", "inotify", "ioctl", "mman", "mount", "net", "poll", "ptrace", "reboot", "resource", "sched", "term", "time", "user", "zerocopy"] }
 
 [target.'cfg(target_os = "macos")'.dependencies]
-nix = "0.26.4"
+nix = { version = "0.29.0", features = ["dir", "event", "hostname", "inotify", "ioctl", "mman", "mount", "net", "poll", "ptrace", "reboot", "resource", "sched", "term", "time", "user", "zerocopy"] }