Bump version to 0.2.4

This change bumps the version of the crate to 0.2.4. The following
notable changes have been made since 0.2.3:
- Added the reset command to perform a factory reset
- Added the -V/--version option to print the program's version
- Check the status of a PWS slot before accessing it in pws get
- Added NITROCLI_NO_CACHE environment variable to bypass caching of
  secrets
- Clear cached PIN entry as part of pin set command to prevent
  spurious authentication failures
- Bumped libc dependency to 0.2.57
- Bumped cc dependency to 1.0.37

Author: d-e-s-o

nitrocli/CHANGELOG.md

@@ -1,5 +1,5 @@
-Unreleased
-----------
+0.2.4
+-----
 - Added the `reset` command to perform a factory reset
 - Added the `-V`/`--version` option to print the program's version
 - Check the status of a PWS slot before accessing it in `pws get`

nitrocli/Cargo.lock

@@ -19,7 +19,7 @@
 
 [package]
 name = "nitrocli"
-version = "0.2.3"
+version = "0.2.4"
 edition = "2018"
 authors = ["Daniel Mueller <[email protected]>"]
 license = "GPL-3.0-or-later"