auth 4.9: pdnsutil check-zone: accept LUA A/AAAA as SVCB address targets

[Habbie]

Short description

backport of #14011

Checklist

I have:

• read the CONTRIBUTING.md document
• 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)
• checked that this code was merged to master

[coveralls]

Pull Request Test Coverage Report for Build 9126371431

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 20 unchanged lines in 5 files lost coverage.
• Overall coverage decreased (-0.02%) to 63.004%

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Files with Coverage Reduction	New Missed Lines	%
pdns/packethandler.cc	1	72.42%
pdns/iputils.hh	1	67.99%
pdns/misc.cc	1	48.67%
pdns/backends/gsql/gsqlbackend.hh	3	96.57%
modules/lmdbbackend/lmdbbackend.cc	14	72.5%

Totals
Change from base Build 9080601243:	-0.02%
Covered Lines:	41631
Relevant Lines:	59301

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💛 - Coveralls