unskip log_dir tests

[awaelchli]

What does this PR do?

You need to name the file test_* for pytest to detect it as a file to run for tests.
Introduced in #8187

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[codecov]

Codecov Report

Merging #9105 (805aff5) into master (bf8c1fd) will decrease coverage by 4%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #9105    +/-   ##
=======================================
- Coverage      92%     88%    -4%     
=======================================
  Files         176     176            
  Lines       14663   14663            
=======================================
- Hits        13496   12889   -607     
- Misses       1167    1774   +607     

[mergify]

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