Add Networking Documentation About Firewall Allowed Ports (80, 443)

[MaxWardle]

Describe the Issue Recently a client has asked about a networking issue with trying to access the follwoing url from a lambda running withtin the dev vpc: https://:8088/something/else. this url uses the port 8088 which is not one of the allowed ports in the perimeter firewall. the allowed ports are 80 and 443.

Additional Context

• Networking doc: https://github.com/bcgov/public-cloud-techdocs/blob/dev/docs/networking.md

Acceptance Criteria

• [ ] Add documentation about high ports in the networking page of the technical documentation