[execution][local] Improve setup handling

With Python 3.7, the runner failing its creation
doesn't propagate the same as with Python 3.6.

beat/core/execution/local.py

@@ -335,8 +335,12 @@ class LocalExecutor(BaseExecutor):
             loop_socket=self.loop_socket,
         )
 
-        retval = self.executor.setup()
-        if not retval:
+        try:
+            status = self.executor.setup()
+        except Exception:
+            status = 0
+
+        if not status:
             self.__cleanup()
             raise RuntimeError("Algorithm {} setup failed".format(self.algorithm.name))