message: fix(rpc-spec): specify `from` address to avoid nonce-too-low
  if no `from` is specified, the provider will use the default `from` which
  sometimes can be raced across integration tests with a 0 nonce
diff: @@ -129,6 +129,7 @@ describe('Basic RPC tests', () => {
  const estimate = await l2Provider.estimateGas({
  ...DEFAULT_TRANSACTION,
  data: '0x' + '00'.repeat(len),
  + from: '0x' + '1234'.repeat(10),
  })
  expect(estimate.gt(last)).to.be.true
  