Test

Merge 'reactor: deprecate at_destroy(), at_exit()' from Avi Kivity #1157

Job	Run time
Test with DPDK enabled / test	20m 5s
Test with C++20 modules enabled / test	13m 58s
Test (clang++, C++20, debug) / test	11m 32s
Test (clang++, C++20, dev) / test	9m 23s
Test (clang++, C++20, release) / test	11m 24s
Test (clang++, C++23, debug) / test	11m 11s
Test (clang++, C++23, dev) / test	10m 49s
Test (g++, C++20, debug) / test	14m 43s
Test (g++, C++20, dev) / test	8m 2s
Test (g++, C++20, release) / test	10m 50s
Test (g++, C++23, debug) / test	14m 10s
Test (g++, C++23, dev) / test	7m 18s
Test (g++, C++23, release) / test	10m 46s
Test (clang++, C++23, release) / test	12m 32s
	2h 46m 43s

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