Test

dns: Fix event processing to work safely with recent c-ares #1158

Job	Run time
Test with DPDK enabled / test	11m 56s
Test with C++20 modules enabled / test	13m 55s
Test (clang++, C++20, dev) / test	4m 43s
Test (clang++, C++20, debug) / test	6m 54s
Test (clang++, C++20, release) / test	4m 36s
Test (clang++, C++23, debug) / test	7m 33s
Test (clang++, C++23, release) / test	18m 31s
Test (clang++, C++23, dev) / test	4m 15s
Test (g++, C++20, debug) / test	10m 24s
Test (g++, C++20, dev) / test	5m 34s
Test (g++, C++20, release) / test	6m 32s
Test (g++, C++23, debug) / test	11m 25s
Test (g++, C++23, dev) / test	5m 8s
Test (g++, C++23, release) / test	6m 42s
	1h 58m 8s

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