ignore errors when reading files - uf8 compatibility

[jan-janssen]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 62.50000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.53%. Comparing base (5d20624) to head (112992c).
⚠️ Report is 33 commits behind head on main.

Files with missing lines	Patch %	Lines
pyiron_vasp/dft/volumetric.py	0.00%	1 Missing ⚠️
pyiron_vasp/vasp/procar.py	0.00%	1 Missing ⚠️
pyiron_vasp/vasp/structure.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #71      +/-   ##
==========================================
- Coverage   71.66%   71.53%   -0.14%     
==========================================
  Files          12       12              
  Lines        2693     2698       +5     
==========================================
  Hits         1930     1930              
- Misses        763      768       +5     

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