build: improve c-ares version extraction method #705

Job	Run time
Test with C++20 modules enabled / test	13m 38s
Test with DPDK enabled / test	22m 47s
Test (clang++, C++20, debug) / test	16m 53s
Test (clang++, C++20, dev) / test	13m 36s
Test (clang++, C++20, release) / test	15m 7s
Test (clang++, C++23, debug) / test	17m 35s
Test (clang++, C++23, dev) / test	14m 52s
Test (clang++, C++23, release) / test	15m 49s
Test (g++, C++20, debug) / test	21m 4s
Test (g++, C++20, dev) / test	13m 5s
Test (g++, C++20, release) / test	17m 9s
Test (g++, C++23, debug) / test	21m 6s
Test (g++, C++23, dev) / test	13m 9s
Test (g++, C++23, release) / test	16m 59s
	3h 52m 49s

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