feat: update nano hathor core URL for blueprint info endpoint

[pedroferreira1]

Context

When I was creating a new API in the hathor core to get the blueprint source code, I had a discussion with @msbrogli about the best path for it. We ended up deciding to use /blueprint/source and, to keep consistency, we changed /blueprint (which returned the blueprint information) to /blueprint/info.

We decided to do it now that we don't have many clients using it and we can quickly update the lib and wallets with this new version.

Acceptance Criteria

• Update blueprint information endpoint URL from hathor core

Security Checklist

• Make sure you do not include new dependencies in the project unless strictly necessary and do not include dev-dependencies as production ones. More dependencies increase the possibility of one of them being hijacked and affecting us.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.50%. Comparing base (c3fb266) to head (9654885).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #734   +/-   ##
=======================================
  Coverage   80.50%   80.50%           
=======================================
  Files          78       78           
  Lines        6182     6182           
  Branches     1340     1349    +9     
=======================================
  Hits         4977     4977           
  Misses       1193     1193           
  Partials       12       12           

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