Fix issue with nested directories

[pcmxgti]

Description

Fixes a problem where Tokendito would fail to create intermediate
directories when running via a container with mounted volumes.

Related Issue

Motivation and Context

How Has This Been Tested?

With tox and a locally built container

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[sevignyj]

LGTM!