Remove some deprecation warnings

[jesper-friis]

Description:

Remove some deprecation warnings

Type of change:

• Bug fix.
• New feature.
• Documentation update.

Checklist for the reviewer:

This checklist should be used as a help for the reviewer.

• Is the change limited to one issue?
• Does this PR close the issue?
• Is the code easy to read and understand?
• Do all new feature have an accompanying new test?
• Has the documentation been updated as necessary?

[codecov-commenter]

Codecov Report

Base: 67.52% // Head: 67.25% // Decreases project coverage by -0.27% ⚠️

Coverage data is based on head (718843b) compared to base (68a30ed).
Patch coverage: 100.00% of modified lines in pull request are covered.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #83      +/-   ##
==========================================
- Coverage   67.52%   67.25%   -0.27%     
==========================================
  Files          14       14              
  Lines        1124     1124              
==========================================
- Hits          759      756       -3     
- Misses        365      368       +3     

Impacted Files	Coverage Δ
tripper/triplestore.py	75.70% <100.00%> (-1.06%)	⬇️

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