fix: signature of migration util functions

[Hofer-Julian]

• tmpdir is required, both functions will fail if it will not be set
• add type hints

• [x] Pydantic model updated or no update needed

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 75.13%. Comparing base (a602b00) to head (42683f6).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2840 +/- ## ========================================== + Coverage 75.10% 75.13% +0.02% ========================================== Files 111 111 Lines 11240 11240 ========================================== + Hits 8442 8445 +3 + Misses 2798 2795 -3 ```

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