[FAB-10968] Fix race in discovery integration test
[FAB-10968] Fix race in discovery integration test

Moved the testPeers variable initialization to be
inside the Main function, since it is anyway should
be written only once as all tests operate on the same
directory of channel artifacts.

Change-Id: Ie07be90e1d456dd62abd92d41631df0aab89933e
Signed-off-by: yacovm <632344b5da9bd743456189af4db4b56472defb8c@il.ibm.com>

stemlending/fabric,stemlending/fabric,muralisrini/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,binhn/fabric,xixuejia/fabric,xixuejia/fabric,manish-sethi/fabric,stemlending/fabric,jimthematrix/fabric,muralisrini/fabric,manish-sethi/fabric-sidedb,muralisrini/fabric,binhn/fabric,binhn/fabric,xixuejia/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric,hyperledger/fabric,hyperledger/fabric,manish-sethi/fabric-sidedb,stemlending/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,jimthematrix/fabric