Add support for Polygon Amoy

[derekpierre]

Environment information

• ape and plugin versions:

$ ape --version
0.7.7

$ ape plugins list
Installed Plugins
  etherscan    0.7.0
  infura       0.7.0
  polygon      0.7.1
  solidity     0.7.1

• Python Version: 3.10.10
• OS: macOS

What went wrong?

Polygon Mumbai will be deprecated in favor of Polygon Amoy - https://polygon.technology/blog/introducing-the-amoy-testnet-for-polygon-pos, https://polygon.technology/blog/polygon-pos-is-cooking-the-napoli-upgrade-means-better-ux-the-mumbai-testnet-takes-a-bow.

Add support for Polygon Amoy.

How can it be fixed?

Fill this in if you have ideas on how the bug could be fixed.

[linear]

APE-1717 Add support for Polygon Amoy