Restore Polygon Amoy ETH address (#53)

A couple of "resolve token from address" implementations iterate over
TOKEN_SYMBOLS_MAP and return the first entry where the address on a
given chain matches. This typically resolves ETH before WETH, so the ETH
mappings need to 1:1 match the WETH mappings.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@across-protocol/constants",
-  "version": "3.1.2",
+  "version": "3.1.3",
   "description": "Export commonly re-used values for Across repositories",
   "repository": "https://github.com/across-protocol/constants.git",
   "author": "[email protected]",

src/tokens.ts

@@ -91,6 +91,7 @@ export const TOKEN_SYMBOLS_MAP = {
       [CHAIN_IDs.OPTIMISM]: "0x4200000000000000000000000000000000000006",
       [CHAIN_IDs.OPTIMISM_SEPOLIA]: "0x4200000000000000000000000000000000000006",
       [CHAIN_IDs.POLYGON]: "0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619",
+      [CHAIN_IDs.POLYGON_AMOY]: "0x52eF3d68BaB452a294342DC3e5f464d7f610f72E",
       [CHAIN_IDs.SEPOLIA]: "0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14",
       [CHAIN_IDs.ZK_SYNC]: "0x5AEa5775959fBC2557Cc8789bC1bf90A239D9a91",
       [CHAIN_IDs.ZK_SYNC_SEPOLIA]: "0x2D6Db36B3117802E996f13073A08A685D3FeF7eD"