test(e2e): Add test with scp operations

[moduli]

This PR adds an e2e test that validates scp operations over a boundary connection. The test does the following

• creates a tcp target
• connects to the target
• generates a text file of ~300K
• scp the file from the client to the target. validates the checksum
• cat the file on the target
• scp the file from the target to the client. validates the checksum

There will be a follow-up PR to do the same for an ssh target.

[moduli]

As a note, when working on the ssh target variant of the test, it is currently failing when trying to cat the text file on the target, as expected.

EDIT: I'm a little confused. The ssh target version of the test fails when running this locally against AWS or Docker infrastructure. However, it somehow passed in CI (against Docker infrastructure)???

EDIT2: I needed to update my CLI locally