test/connector_c: fixed path to the connector_c/tt for out-of- source builds.
test/connector_c: fixed path to the connector_c/tt for out-of-
source builds.

rtsisyk/tarantool,mejedi/tarantool,rtsisyk/tarantool,nvoron23/tarantool,Sannis/tarantool,dkorolev/tarantool,condor-the-bird/tarantool,dkorolev/tarantool,vasilenkomike/tarantool,dkorolev/tarantool,condor-the-bird/tarantool,ocelot-inc/tarantool,vasilenkomike/tarantool,rtsisyk/tarantool,KlonD90/tarantool,guard163/tarantool,mejedi/tarantool,mejedi/tarantool,guard163/tarantool,Sannis/tarantool,Sannis/tarantool,nvoron23/tarantool,vasilenkomike/tarantool,vasilenkomike/tarantool,ocelot-inc/tarantool,dkorolev/tarantool,ocelot-inc/tarantool,nvoron23/tarantool,dkorolev/tarantool,Sannis/tarantool,guard163/tarantool,mejedi/tarantool,guard163/tarantool,condor-the-bird/tarantool,condor-the-bird/tarantool,KlonD90/tarantool,KlonD90/tarantool,vasilenkomike/tarantool,nvoron23/tarantool,KlonD90/tarantool,Sannis/tarantool,nvoron23/tarantool,condor-the-bird/tarantool,ocelot-inc/tarantool,KlonD90/tarantool,rtsisyk/tarantool,nvoron23/tarantool,guard163/tarantool