fix: prevent possible connection leak in AutorecoveringConnection during creation #2406

Job	Run time
call-build-test / build-ubuntu	1m 36s
call-build-test / build-win32	3m 50s
call-build-test / sequential-integration-ubuntu	9m 59s
call-build-test / integration-ubuntu	3m 53s
call-build-test / sequential-integration-win32	22m 10s
call-build-test / integration-win32	9m 53s
	51m 21s

Provide feedback