enable parallel testing option

Signed-off-by: Karl W. Schulz <karl.schulz@amd.com>

.github/workflows/ubuntu-focal.yml

@@ -41,7 +41,7 @@ jobs:
         run: |
           mkdir build
           cd build
-          cmake -DCMAKE_INSTALL_PREFIX=/opt/omniperf ..
+          cmake -DCMAKE_INSTALL_PREFIX=/opt/omniperf -DPYTEST_NUMPROCS=4 ..
           make install
       - name: CTest- Analyze Commands
         run: |