replace mumbai with polygon amoy testnet (#1440)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "opensea-js",
-  "version": "7.1.4",
+  "version": "7.1.5",
   "description": "TypeScript SDK for the OpenSea marketplace helps developers build new experiences using NFTs and our marketplace data",
   "license": "MIT",
   "author": "OpenSea Developers",

src/types.ts

@@ -128,8 +128,8 @@ export enum Chain {
   // ⚠️NOTE: When adding to this list, also add to the util function `isTestChain`
   /** Sepolia */
   Sepolia = "sepolia",
-  /** Polygon Testchain Mumbai */
-  Mumbai = "mumbai",
+  /** Polygon Amoy */
+  Amoy = "amoy",
   /** Klaytn Baobab */
   Baobab = "baobab",
   /** Base Testnet */
@@ -138,11 +138,11 @@ export enum Chain {
   BlastSepolia = "blast_sepolia",
   /** Binance Smart Chain Testnet */
   BNBTestnet = "bsctestnet",
-  /** Arbitrum Testnet */
+  /** Arbitrum Sepolia */
   ArbitrumSepolia = "arbitrum_sepolia",
-  /** Avalanche Fuji Testnet */
+  /** Avalanche Fuji */
   Fuji = "avalanche_fuji",
-  /** Optimism Sepolia Testnet */
+  /** Optimism Sepolia */
   OptimismSepolia = "optimism_sepolia",
   /** Solana Devnet */
   SolanaDevnet = "soldev",

src/utils/utils.ts

@@ -174,8 +174,8 @@ export const getWETHAddress = (chain: Chain) => {
       return "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2";
     case Chain.Polygon:
       return "0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619";
-    case Chain.Mumbai:
-      return "0xa6fa4fb5f76172d178d61b04b0ecd319c5d1c0aa";
+    case Chain.Amoy:
+      return "0x52eF3d68BaB452a294342DC3e5f464d7f610f72E";
     case Chain.Sepolia:
       return "0x7b79995e5f793a07bc00c21412e50ecae098e7f9";
     case Chain.Klaytn:
@@ -262,7 +262,7 @@ export const basisPointsForFee = (fee: Fee): bigint => {
 export const isTestChain = (chain: Chain): boolean => {
   switch (chain) {
     case Chain.Sepolia:
-    case Chain.Mumbai:
+    case Chain.Amoy:
     case Chain.Baobab:
     case Chain.BaseSepolia:
     case Chain.BlastSepolia: