Release v1.4.0 to pypi

[onerandomusername]

https://github.com/amitdev/lru-dict/releases/tag/v1.4.0

These files are not available on PyPI. Would you consider cutting a release? https://pypi.org/project/lru-dict/

[step21]

Similarly, I am a bit confused why there is 1.4.1 on pypi, but the tag in github is 1.5.0?