Wrapped connection_error_called by socket's strand. #1377

Job	Run time
macos (-DMQTT_TEST_1=ON -DMQTT_TEST_2=ON -DMQTT_TEST_3=OFF -DMQTT_TEST_4=OFF -DMQTT_TEST_5=OFF ...	22m 49s
macos (-DMQTT_TEST_1=OFF -DMQTT_TEST_2=OFF -DMQTT_TEST_3=ON -DMQTT_TEST_4=ON -DMQTT_TEST_5=OFF ...	12m 12s
linux (0)	11m 6s
macos (-DMQTT_TEST_1=ON -DMQTT_TEST_2=OFF -DMQTT_TEST_3=OFF -DMQTT_TEST_4=OFF -DMQTT_TEST_5=ON ...	4m 32s
linux (1)	23m 9s
macos (-DMQTT_TEST_1=OFF -DMQTT_TEST_2=OFF -DMQTT_TEST_3=OFF -DMQTT_TEST_4=OFF -DMQTT_TEST_5=OFF ...	7m 22s
linux (2)	11m 42s
macos (-DMQTT_TEST_1=OFF -DMQTT_TEST_2=OFF -DMQTT_TEST_3=OFF -DMQTT_TEST_4=OFF -DMQTT_TEST_5=OFF ...	6m 36s
linux (3)	18m 46s
linux (4)	28m 14s
linux (5)	24m 5s
linux (6)	31m 11s
linux (7)	26m 9s
	3h 47m 53s

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