Fix eventual consistency issues

[aknysh]

what

• Fix eventual consistency issues

why

• The module could not find the Route it just created in the same session

* aws_route.requestor: 1 error(s) occurred:

* aws_route.requestor: Error finding route after creating it: 

Unable to find matching route for Route Table (rtb-f40f0c93) and destination CIDR block (10.0.0.0/16).

references

• terraform: Error finding route after creating it: Unable to find matching route for Route Table hashicorp/terraform#9756
• Failure while trying to add more routes to a route table. hashicorp/terraform#7038
• error finding matching route for Route table and destination CIDR block randomly hashicorp/terraform#8226
• Intermittent AWS Eventual Consistency Issues on CircleCI? hashicorp/terraform#5335