Fix the truncation problem when saving to netcdf5 after merging

[mikapfl]

Pull request

Please confirm that this pull request has done the following:

• Tests added
• Documentation added (where applicable)
• Description in a {pr}.thing.md file in the directory changelog added - see changelog/README.md for details

Description

Fix the truncation problem when saving to netcdf5 after merging.

Closes: #325

Add a default compression algorithm level and compression level if nothing is specified.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.17%. Comparing base (1283beb) to head (9ca89d2).
Report is 9 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #324      +/-   ##
==========================================
+ Coverage   97.15%   97.17%   +0.01%     
==========================================
  Files          49       49              
  Lines        4748     4773      +25     
==========================================
+ Hits         4613     4638      +25     
  Misses        135      135              

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[crdanielbusch]

Ready for review @mikapfl

[mikapfl]

Nice, thanks. We need a small changelog entry, then we're ready to merge.