increased timeout in tomography test from 1 min to 3mins
increased timeout in tomography test from 1 min to 3mins

atilag/qiskit-sdk-py,QISKit/qiskit-sdk-py,QISKit/qiskit-sdk-py,atilag/qiskit-sdk-py,QISKit/qiskit-sdk-py,atilag/qiskit-sdk-py