fix up mixed tabs / spaces

[philipmac]

Closes https://github.com/niaid/image_portal_workflows/issues/307

Changes

• List of changes set indent to tabs throughout

This PR doesn't introduce any:

• [x] Binary files
• [x] Temporary files, auto-generated files
• [x] Secret keys
• [x] Local debugging print statements
• [x] Unwanted comments (e.g: # Gets user from environment for code os.environ['user'] )

This PR contains valid:

• [ ] tests

[github-actions[bot]]

Coverage report

The coverage rate went from 64.77% to 64.77% :arrow_right: The branch rate is 47%.

None of the new lines are part of the tested code. Therefore, there is no coverage data about them.

Diff Coverage details (click to unfold)

### em_workflows/czi/flow.py `100%` of new lines are covered (`39.79%` of the complete file).