Bump readchar from 4.2.0 to 4.2.1

Bumps [readchar](https://github.com/magmax/python-readchar) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/magmax/python-readchar/releases)
- [Commits](magmax/python-readchar@v4.2.0...v4.2.1)

---
updated-dependencies:
- dependency-name: readchar
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -47,7 +47,7 @@ python-dateutil==2.9.0.post0
 python-editor==1.0.4
 pytz==2024.2
 PyYAML==6.0.2
-readchar==4.2.0
+readchar==4.2.1
 requests==2.32.3
 resolvelib==1.1.0
 responses==0.25.3