Add cairo 0.6.2

[Solpatium]

No description provided.

[codecov]

Codecov Report

Merging #54 (4257d24) into master (37dedbb) will decrease coverage by 0.13%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #54      +/-   ##
==========================================
- Coverage   91.73%   91.60%   -0.14%     
==========================================
  Files          14       14              
  Lines         508      512       +4     
==========================================
+ Hits          466      469       +3     
- Misses         42       43       +1     

Impacted Files	Coverage Δ
starknet/contract.py	97.65% <ø> (ø)
starknet/constants.py	100.00% <100.00%> (ø)
starknet/net/client.py	75.00% <100.00%> (-0.44%)	⬇️

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