Fix load text property type

[doctrino]

Description

Please describe the change you have made.

Checklist:

• [ ] Tests added/updated.
• [ ] Documentation updated. Documentation is generated from docstrings - these must be updated according to your change. If a new method has been added it should be referenced in cognite.rst in order to generate docs based on its docstring.
• [ ] Changelog updated in CHANGELOG.md.
• [ ] Version bumped. If triggering a new release is desired, bump the version number in _version.py and pyproject.toml per semantic versioning.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 92.89%. Comparing base (602c1a3) to head (e244586).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1763      +/-   ##
==========================================
- Coverage   92.92%   92.89%   -0.03%     
==========================================
  Files         121      121              
  Lines       17556    17556              
==========================================
- Hits        16314    16309       -5     
- Misses       1242     1247       +5     

Files	Coverage Δ
cognite/client/_version.py	100.00% <100.00%> (ø)
...te/client/data_classes/data_modeling/data_types.py	96.85% <100.00%> (ø)

... and 3 files with indirect coverage changes