Fix FLE tests

[egiurleo]

It looks like libmongocrypt has changed some of its KMS endpoint validation behavior -- now calling the Amazon KMS endpoint via https is valid, and the data key context object also performs some endpoint validation. This does not impact the user experience with FLE.

[p-mongo]

Can you please make a ticket with the error message we are getting on master and a quote of the parameters we are using that results in that message?

[egiurleo]

What error message are you referring to? This one?

      Failure/Error:
        expect do
          context
        end.not_to raise_error
      
        expected no Exception, got #<Mongo::Error::CryptError: Invalid endpoint, expected .: endpoint/to/kms (libmongocrypt error code 1)> with backtrace:

raised by

rspec ./spec/mongo/crypt/data_key_context_spec.rb:193 # Mongo::Crypt::DataKeyContext#initialize with aws kms provider with valid endpoint does not raise an exception