Replace tmpdir with tmo_path fixtures - closes #533

[fizyk]

No description provided.

[codecov-commenter]

Codecov Report

Merging #537 (2ae96bc) into main (4e19c3e) will decrease coverage by 0.40%.
The diff coverage is 88.88%.

@@            Coverage Diff             @@
##             main     #537      +/-   ##
==========================================
- Coverage   74.83%   74.43%   -0.41%     
==========================================
  Files          22       22              
  Lines         616      618       +2     
==========================================
- Hits          461      460       -1     
- Misses        155      158       +3     

Flag	Coverage Δ
linux	74.43% <88.88%> (+0.08%)	⬆️
macos	67.47% <44.44%> (-0.55%)	⬇️

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Impacted Files	Coverage Δ
src/pytest_postgresql/factories/process.py	62.79% <80.00%> (+0.88%)	⬆️
tests/test_executor.py	100.00% <100.00%> (ø)
src/pytest_postgresql/retry.py	47.05% <0.00%> (-17.65%)	⬇️

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