Update Experiment details background task

[LuiggiTenorioK]

PR to handle #168

This will leave the details records unchanged when it fails to the the experiment data or the experiment is not existent since the task will not wipe out the table anymore.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 88.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 75.55%. Comparing base (09028b6) to head (347eb2d).

Files with missing lines	Patch %	Lines
autosubmit_api/repositories/experiment_details.py	81.25%	3 Missing ⚠️
autosubmit_api/bgtasks/tasks/details_updater.py	93.54%	2 Missing ⚠️
autosubmit_api/workers/populate_details_db.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #172      +/-   ##
==========================================
- Coverage   75.66%   75.55%   -0.11%     
==========================================
  Files          89       89              
  Lines        7643     7635       -8     
==========================================
- Hits         5783     5769      -14     
- Misses       1860     1866       +6     

Flag	Coverage Δ
fast-tests	75.55% <88.00%> (-0.11%)	⬇️

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