fixing caching logic

[someshfengde]

Previously the part for creating new cache file if it's not available was not accessible by code.

resolves following issue on fresh start

Just making sure that after changes it works:

Pytest output:

[thompsonson]

I'm merging the request as the secrets are not available in a PR:

• Why can't Github Actions workflows access secrets when triggered by a `pull_request` event? pypa/gh-action-pypi-publish#49

These are the only tests failed.