bump pip version

[avaneeshqb]

First off, thanks for the library.

While using the package with Kedro, we got into dependency conflict on pip as the current version only allows for 20.3.3 & 20.3.4. I tested the changes with poetry run text and the local tests work fine.

[jeppe742]

Thanks @avaneeshqb. The build process is a bit funky, so I have included your change in #39. Once that's merged, you should find the changes in version 0.2.12 😃