Do not lookup IP addresses of X509 certificate subject CNs #271

Job	Run time
functionality-tests	18m 27s
CodeQL-tests	23m 52s
source-maintenance-tests	2m 45s
build-tests(ubuntu-22.04,gcc,default)	5m 29s
build-tests(ubuntu-22.04,gcc,minimal)	4m 14s
build-tests(ubuntu-22.04,gcc,maximus)	6m 10s
build-tests(ubuntu-22.04,clang,default)	6m 7s
build-tests(ubuntu-22.04,clang,minimal)	4m 57s
build-tests(ubuntu-22.04,clang,maximus)	7m 42s
	1h 19m 43s

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