The current implementation of RSPEC-2699 does not support Awaitility framework, used to test asynchronous operations.
Note that when this ticket is implemented, the whitelist of supported framework in RSPEC-2699 should also be updated (and maybe the list order alphabetically).
From the documentation of Awaitility, it seems that only a call to .until(condition); marks the end of the definition of an assertion. Therefore, the rule should be extended to only consider a test having an assertions if such call is done, and not only a call to await()
Example of code asserting nothing:
Example of valid assertion using awaitility: