Remove pip caching in GitHub Actions workflow

The caching of pip dependencies in the GitHub Actions workflow file has been removed. This adjustment may slightly impact performance, however it ensures a fresh pip environment for each run, reducing potential inconsistencies or errors.

Fix for --system install permissions to be readable by all users

Log fixes and Fedora availability

Allow handling version specifiers; ability to update programs

Bump version

Stop using virtualenv process functions

as the sigs are different even between Python 3 versions

Python 2 compat