Steering returns ordered results

[mattjackson220]

What does this PR (Pull Request) do?

• This PR fixes TO /api/x/steering output should be sorted #5461

This PR sorts the results from the /steering endpoint to be sorted alphabetically by delivery service

Which Traffic Control components are affected by this PR?

• Traffic Ops

What is the best way to verify this PR?

do a GET on the /steering endpoint on all API versions and make sure that the results are always ordered the same.
Verify that unit and API tests still pass

If this is a bug fix, what versions of Traffic Control are affected?

The following criteria are ALL met by this PR

no test or doc updates since this is a small bug fix

• This PR includes tests OR I have explained why tests are unnecessary
• This PR includes documentation OR I have explained why documentation is unnecessary
• This PR includes an update to CHANGELOG.md OR such an update is not necessary
• This PR includes any and all required license headers
• This PR DOES NOT FIX A SERIOUS SECURITY VULNERABILITY (see the Apache Software Foundation's security guidelines for details)

Additional Information

[tcfdev]

Pulled down proposed PR and ran locally. Confirmed the results were not sorted previously. Then verified that the results are returned in ascending alphabetical order every time with all results still appearing.

LGTM