TestFargate may be flaky

[t0yv0]

Got this, retrying:

    aws-native:ec2:RouteTable (MyVpcPrivateSubnet2RouteTableCEDCEECE):
      error: operation DELETE failed with "GeneralServiceException": The routeTable 'rtb-0e36fdfc150a6473e' has dependencies and cannot be deleted. (Service: Ec2, Status Code: 400, Request ID: e0f602cf-f377-418a-aef7-d83ef59d863b)
  
    pulumi:pulumi:Stack (pulumi-aws-cdk-fargate-p-it-fv-az585-9-fargate-6df1f91f):
      error: update failed
  
  Resources:
      - 40 deleted
  
  Duration: 1m37s