Fix pandas future deprecations

[patgo25]

1. Pandas will depend on pyarrow
2. Pandas to_numeric function deprecates error parameter --> filedb uses it with the ignore value (just returns the input value. --> catching now ValueErrors and continue

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (263052f) 17.85% compared to head (bc183a5) 17.87%.

Files	Patch %	Lines
src/pygama/flow/file_db.py	50.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #550      +/-   ##
==========================================
+ Coverage   17.85%   17.87%   +0.02%     
==========================================
  Files          34       34              
  Lines        7523     7529       +6     
==========================================
+ Hits         1343     1346       +3     
- Misses       6180     6183       +3     

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