refactor(test): No threading in check_client_async_connect.c
refactor(test): No threading in check_client_async_connect.c

JGrothoff/open62541,StalderT/open62541,jpfr/open62541,StalderT/open62541,StalderT/open62541,jpfr/open62541,JGrothoff/open62541,open62541/open62541,JGrothoff/open62541,jpfr/open62541,JGrothoff/open62541,open62541/open62541,open62541/open62541,open62541/open62541,jpfr/open62541,StalderT/open62541