Mark Facebook CTL tests as pending when network is too slow

[kzar]

Occasionally the network will be too slow on the GitHub CI runner for
any Facebook requests to be made within 15 seconds. When that happens,
let's mark the tests as skipped (pending) instead of failing (or
passing).

Reviewer: @jonathanKingston

Automated tests:

• Unit tests
• Integration tests

Reviewer Checklist:

• Ensure the PR solves the problem
• Review every line of code
• Ensure the PR does no harm by testing the changes thoroughly
• Get help if you're uncomfortable with any of the above!
• Determine if there are any quick wins that improve the implementation

PR Author Checklist:

• Get advice or leverage existing code
• Agree on technical approach with reviewer (if the changes are nuanced)
• Ensure that there is a testing strategy (and documented non-automated tests)
• Ensure there is a documented monitoring strategy (if necessary)
• Consider systems implications

[jonathanKingston]

I think we still have an issue tracking this, we should keep it open despite this mitigation.

Thanks!