Bump version to 0.4.0

feat: bump version to 0.3.1

Update dependencies to address security issues caused by dependencies

For details regarding the security issues see:
* https://github.com/Nicoretti/xxd-rs/security/dependabot/1
* https://github.com/Nicoretti/xxd-rs/security/dependabot/2

Stop deploying docs to gh-pages branch in docs action

Yet another version bump

Bump version number

Yet another version bump

Yet another version bump

Bump version number

Bump version number