Top flaky test: tst_qdnslookup::lookup on MacOS_12 ARM64.

Test case: tst_qdnslookup::lookup has failed on MacOS_12 ARM64 Clang
The test failed 1 times and was flaky 1 time last week.

Coin log excerpt from failed run:
agent:2024/03/15 20:57:00 build.go:404: 437: FAIL! : tst_QDnsLookup::lookup(any-multi) Compared values are not the same
agent:2024/03/15 20:57:00 build.go:404: 437: Actual (addresses.join(';')): "2001:db8::1:1;2001:db8::1:2"
agent:2024/03/15 20:57:00 build.go:404: 437: Expected (host) : "198.51.100.1;198.51.100.2;198.51.100.3;2001:db8::1:1;2001:db8::1:2"
agent:2024/03/15 20:57:00 build.go:404: 437: Loc: [/Users/qt/work/qt/qtbase/tests/auto/network/kernel/qdnslookup/tst_qdnslookup.cpp(393)]
...

Full log at : coin log
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