fix(sdk): withdrawal bug for some custom bridges (#3245)

Fixes a bug in the SDK that would cause withdrawals to revert for
certain custom bridges on Kovan.
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

.changeset/lemon-houses-chew.md

+---
+'@eth-optimism/sdk': patch
+---
+
+Fixes a bug in the SDK for certain bridge withdrawals.

packages/sdk/src/adapters/standard-bridge.ts

@@ -184,8 +184,12 @@ export class StandardBridgeAdapter implements IBridgeAdapter {
       return true
     } catch (err) {
       // If the L2 token is not an L2StandardERC20, it may throw an error. If there's a call
-      // exception then we assume that the token is not supported. Other errors are thrown.
-      if (err.message.toString().includes('CALL_EXCEPTION')) {
+      // exception then we assume that the token is not supported. Other errors are thrown. Since
+      // the JSON-RPC API is not well-specified, we need to handle multiple possible error codes.
+      if (
+        err.message.toString().includes('CALL_EXCEPTION') ||
+        err.stack.toString().includes('execution reverted')
+      ) {
         return false
       } else {
         throw err