[ESI][runtime] Run command in OS environment

Using the simulation environment was causing some applications to use
the shared objects distributed with the wheel. That's usually wrong
since the wheel shared objects are compiled with the "old" string C++
library for compatibility reasons. C++ applications which are compiled
against the ESI runtime don't use that.

lib/Dialect/ESI/runtime/cosim/esi-cosim.py

@@ -188,7 +188,7 @@ def run(self, inner_command: str) -> int:
         time.sleep(0.05)
 
       # Run the inner command, passing the connection info via environment vars.
-      testEnv = Simulator.get_env()
+      testEnv = os.environ.copy()
       testEnv["ESI_COSIM_PORT"] = str(port)
       testEnv["ESI_COSIM_HOST"] = "localhost"
       return subprocess.run(inner_command, cwd=os.getcwd(),