switch to use of importlib to avoid imp module deprecation (fixes #119)

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


[ROCm/rocprofiler-compute commit: 86f8f4a701]

projects/rocprofiler-compute/tests/test_analyze_workloads.py

@@ -1,8 +1,9 @@
 import pytest
 from unittest.mock import patch
-import imp
+from importlib.machinery import SourceFileLoader
+
+omniperf = SourceFileLoader("omniperf", "src/omniperf").load_module()
 
-omniperf = imp.load_source("omniperf", "src/omniperf")
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