fix(@embark/proxy): only up event listeners on available providers

Only the  Ganache provider has the setMaxListener

packages/stack/proxy/src/proxy.js

@@ -42,8 +42,9 @@ export class Proxy {
  _createWeb3RequestManager(provider) {
  const manager = new Web3RequestManager.Manager(provider);
  // Up max listener because the default 10 limit is too low for all the events the proxy handles
- // Warning mostly appeared in tests
- manager.provider.setMaxListeners(100);
+ // Warning mostly appeared in tests. The warning is also only with the Ganache provider
+ // eslint-disable-next-line no-unused-expressions
+ manager.provider?.setMaxListeners?.(100);
  return manager;
  }
 
@@ -53,6 +54,7 @@ export class Proxy {
  // Using net_version instead of eth_accounts, because eth_accounts can fail if EIP1102 is not approved first
  await reqMgr.send({ method: 'net_version' });
  } catch (e) {
+ this.logger.debug(e);
  throw new Error(__(`Unable to connect to the blockchain endpoint`));
  }
  }