Added yearly limit for sinks

[V3lop5]

Fixes #87

This PR ...

adds a yearly limit for sinks.

Can be used to limit CO2 output.

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Checklist

Checklist for Contributors

• Unit tests provided?
  Unit tests are needed for new features or to reproduce the bug solved by this PR.
• Documentation updated?
• Unit tests successful
• Code smells (flake8) checked

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• Check linked issue
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[github-actions]

Unit Test Results

  1 files  ±0    1 suites  ±0   43s ⏱️ -14s
63 tests ±0  63 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit ccfb29e. ± Comparison against base commit 3d7d244.

[codecov-commenter]

Codecov Report

Merging #88 (ccfb29e) into main (3d7d244) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #88      +/-   ##
==========================================
+ Coverage   83.03%   83.04%   +0.01%     
==========================================
  Files          93       93              
  Lines        1762     1764       +2     
==========================================
+ Hits         1463     1465       +2     
  Misses        299      299              

Flag	Coverage Δ
pytest	83.04% <100.00%> (+0.01%)	⬆️

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Impacted Files	Coverage Δ
ensysmod/model/energy_sink.py	100.00% <100.00%> (ø)
ensysmod/schemas/energy_sink.py	100.00% <100.00%> (ø)

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