Return only unique names/versions for LoggerCollection

[twsl]

What does this PR do?

Fixes #10954

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[tchaton]

LGTM !

[codecov]

Codecov Report

Merging #10976 (6d064f9) into master (9da78a9) will increase coverage by 0%.
The diff coverage is 100%.

❗ Current head 6d064f9 differs from pull request most recent head 7947e75. Consider uploading reports for the commit 7947e75 to get more accurate results

@@           Coverage Diff           @@
##           master   #10976   +/-   ##
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  Coverage      88%      88%           
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  Files         177      177           
  Lines       16576    16536   -40     
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- Hits        14588    14556   -32     
+ Misses       1988     1980    -8     

[awaelchli]

Strictly speaking, this is a breaking change. I labelled it with milestone 1.6 for now. I would be careful to include this in the 1.5.x release since this impacts the path where artifacts are stored, so it may also impact resuming for some users.

[awaelchli]

great!!! happy holidays