feat(CI): Use private RPCs for Ethereum and Sepolia env-tests

[Mo-Hussain]

Description

• Add private RPCs for Ethereum and Sepolia env-tests
• Support automatic retries for failed env-tests

Testing

Manual

[changeset-bot]

⚠️ No Changeset found

Latest commit: fce5a5f

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.53%. Comparing base (9eb19ca) to head (fce5a5f).
Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5068   +/-   ##
=======================================
  Coverage   77.53%   77.53%           
=======================================
  Files         103      103           
  Lines        2110     2110           
  Branches      190      190           
=======================================
  Hits         1636     1636           
  Misses        453      453           
  Partials       21       21           

Components	Coverage Δ
core	87.80% <ø> (ø)
hooks	79.39% <ø> (ø)
isms	83.68% <ø> (ø)
token	91.27% <ø> (ø)
middlewares	79.80% <ø> (ø)