dotbot/examples: add labyrinth example

[aabadie]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 38.88889% with 33 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.61%. Comparing base (e3a7146) to head (1c07466).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
dotbot/examples/labyrinth/labyrinth.py	38.88%	33 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #241      +/-   ##
==========================================
- Coverage   79.95%   79.61%   -0.34%     
==========================================
  Files          74       75       +1     
  Lines        7946     8000      +54     
  Branches      544      543       -1     
==========================================
+ Hits         6353     6369      +16     
- Misses       1591     1628      +37     
- Partials        2        3       +1     

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