improve: use tenderly rpc in tests (#721)

Signed-off-by: bennett <bennett@umaproject.org>

test/common.test.ts

@@ -41,7 +41,7 @@ describe("Utils test", () => {
     const relayerAddress = DEFAULT_SIMULATED_RELAYER_ADDRESS;
 
     // @todo: Ensure that NODE_URL_1 is always defined in test CI?
-    const rpcUrl = process.env.NODE_URL_1 ?? "https://eth-mainnet.g.alchemy.com/v2/demo";
+    const rpcUrl = process.env.NODE_URL_1 ?? "https://mainnet.gateway.tenderly.co";
     const provider = new providers.JsonRpcProvider(rpcUrl, 1);
     const spokePool: SpokePool = SpokePool__factory.connect(spokePoolAddress, provider);