Change the use of the Goerli network to the Sepolia network in the TestHeight test

[stefanalfbo]

This PR is fixing the issue #1813, to update the test to use the Sepolia network instead of the deprecated Goerli network.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 75.03%. Comparing base (619fffd) to head (b3cd71f).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1814      +/-   ##
==========================================
+ Coverage   74.92%   75.03%   +0.10%     
==========================================
  Files          96       96              
  Lines        8183     8183              
==========================================
+ Hits         6131     6140       +9     
+ Misses       1523     1518       -5     
+ Partials      529      525       -4     

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[pnowosie]

This PR will be merge to main as a part of #1861