build: bump DataStructures compat to 0.19

[BatyLeo]

• bump DataStructures to 0.19
• setup dependabot
• fix deprecation warnings

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.28%. Comparing base (1bb7fa8) to head (57023a5).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #34      +/-   ##
==========================================
- Coverage   77.74%   77.28%   -0.46%     
==========================================
  Files           6        6              
  Lines         328      317      -11     
==========================================
- Hits          255      245      -10     
+ Misses         73       72       -1     

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