Adds deployment for Amoy testnet.

[jamesduncombe]

This PR:

• Adds deployment for Polygon Amoy testnet.

---

Amoy chain details:

See: https://polygon.technology/blog/introducing-the-amoy-testnet-for-polygon-pos

Waiting for this safe-global/safe-singleton-factory#398 before deploying - ✅

[shortcut-integration]

This pull request has been linked to Shortcut Story #9368: Chain: Migrate to Amoy.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 7.52%. Comparing base (fd3cf39) to head (6e43f2d).

❗ Current head 6e43f2d differs from pull request most recent head ce9cd1c. Consider uploading reports for the commit ce9cd1c to get more accurate results

Additional details and impacted files

@@          Coverage Diff          @@
##            main     #95   +/-   ##
=====================================
  Coverage   7.52%   7.52%           
=====================================
  Files         47      47           
  Lines        797     797           
  Branches     210     210           
=====================================
  Hits          60      60           
  Misses       737     737           

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