Added workaround for the test case to find TBB library in CI env

Author: TejaX-Alaghari

behavior_tests/src/cmake_dpct_helper_add_mkl_to_target/do_test.py

@@ -44,5 +44,5 @@ def migrate_test():
 def build_test():
     return True
 def run_test():
-    return call_subprocess("./app.run")
+    return call_subprocess("LD_LIBRARY_PATH=${TBBROOT}/${TBBVER}/tbb/${TBB_MAJORVER}/lib:${TBBROOT}/lib:${LD_LIBRARY_PATH} ./app.run")