auth: proactive test fix

[miodvallat]

Short description

One of the tests added in #16589 depends upon the order records will be returned by the backend. Fix this to let it work regardless of that order.

Checklist

I have:

• read the CONTRIBUTING.md document
• read and accepted the Developer Certificate of Origin document, including the AI Policy, and added a "Signed-off-by" to my commits
• compiled this code
• tested this code
• included documentation (including possible behaviour changes)
• documented the code
• added or modified regression test(s)
• added or modified unit test(s)

[coveralls]

Pull Request Test Coverage Report for Build 19967963078

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 58 unchanged lines in 13 files lost coverage.
• Overall coverage decreased (-0.02%) to 73.31%

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Files with Coverage Reduction	New Missed Lines	%
pdns/iputils.hh	1	76.22%
pdns/recursordist/aggressive_nsec.cc	2	66.69%
modules/gpgsqlbackend/spgsql.cc	3	67.94%
pdns/dnsdistdist/dnsdist-carbon.cc	3	62.01%
pdns/recursordist/recpacketcache.hh	3	89.55%
pdns/recursordist/test-syncres_cc2.cc	3	89.18%
pdns/remote_logger.cc	3	58.62%
pdns/tsigverifier.cc	3	77.22%
pdns/recursordist/syncres.cc	4	81.1%
pdns/misc.cc	6	61.73%

Totals
Change from base Build 19964475555:	-0.02%
Covered Lines:	128707
Relevant Lines:	164801

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💛 - Coveralls