Feat/add pyth usdt perp mainnet market

[aarmoa]

• Added PYTH/USDT PERP market info in mainnet metadata ini file

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e484a2c) 56.45% compared to head (af0a686) 56.45%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #270   +/-   ##
=======================================
  Coverage   56.45%   56.45%           
=======================================
  Files          17       17           
  Lines        2037     2037           
  Branches      241      241           
=======================================
  Hits         1150     1150           
  Misses        851      851           
  Partials       36       36           

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