Update nix to allow only 0.23 since 0.22 is marked vulnerable:

https://rustsec.org/advisories/RUSTSEC-2021-0119.html

Author: eldruin

CHANGELOG.md

@@ -8,7 +8,7 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
-- Updated nix to allow both version `0.22` or `0.23`.
+- Updated nix to version `0.23`.
 - Add PEC support for SMBus compatible adapters
 - Add `LinuxI2CDevice::force_new()` to open the device without checking if the address is bound to a driver.
 
@@ -24,4 +24,3 @@ The changelog for previous versions was not recorded.
 
 [Unreleased]: https://github.com/rust-embedded/rust-i2cdev/compare/0.5.0...HEAD
 [v0.5.0]: https://github.com/rust-embedded/rust-i2cdev/compare/0.4.0...0.5.0
-

Cargo.toml

@@ -18,7 +18,7 @@ Provides API for safe access to Linux i2c device interface.
 libc = "0.2"
 bitflags = "1.3"
 byteorder = "1"
-nix = ">= 0.22, < 0.24"
+nix = "0.23"
 
 [dev-dependencies]
 docopt = "1"