Fix pex filenames

[rtibbles]

Summary

This appears to have been an inadvertent regression from our introduction of flake8-print - as the logging was not configured, the logging messages went nowhere. Reverts to print and adds noqa flags.

Removes reliance on writing to VERSION file which should only really be used for the whl file, and gets rid of intermediate make step.

References

Fixes #12440

Reviewer guidance

Does the pex file have a name? Does the name correlate to the names of the other assets? If so, all is well.

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Testing checklist

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included
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• Critical and brittle code paths are covered by unit tests

PR process

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Reviewer checklist

• Automated test coverage is satisfactory
• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

[github-actions]

Build Artifacts

Asset type	Download link
PEX file	kolibri-0.17.0b3.dev0_git.2.g3c6c02c3.pex
Windows Installer (EXE)	kolibri-0.17.0b3.dev0+git.2.g3c6c02c3-windows-setup-unsigned.exe
Debian Package	kolibri_0.17.0b3.dev0+git.2.g3c6c02c3-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.17.0b3.dev0+git.2.g3c6c02c3.dmg
Android Package (APK)	kolibri-0.17.0b3.dev0+git.2.g3c6c02c3-0.1.3-debug.apk
TAR file	kolibri-0.17.0b3.dev0+git.2.g3c6c02c3.tar.gz
WHL file	kolibri-0.17.0b3.dev0+git.2.g3c6c02c3-py2.py3-none-any.whl

[marcellamaki]

pex file is named properly in built assets