Fix failing tests, including in ofrak-core-dev docker with Python3.11

ofrak_core/ofrak/ofrak_context.py

@@ -203,7 +203,10 @@ async def run_async(self, func: Callable[["OFRAKContext", Any], Awaitable[None]]
 
     # TODO: Typehints here do not properly accept functions with variable args
     def run(self, func: Callable[["OFRAKContext", Any], Awaitable[None]], *args):
-        asyncio.get_event_loop().run_until_complete(self.run_async(func, *args))
+        # If we run this function multiple time and try using the default loop,
+        # the first test will delete the loop at the end of the run,
+        # and the 2nd call, unless we create a new asyncio loop.
+        asyncio.new_event_loop().run_until_complete(self.run_async(func, *args))
 
     def _setup(self):
         """Discover common OFRAK services and components."""

ofrak_io/ofrak_io/batch_manager.py

@@ -91,7 +91,7 @@ async def get_result(self, request: Request) -> Result:
         current_batch.add_request(request)
         # Gives self._handler_loop_task a chance to raise its errors
         done, _ = await asyncio.wait(
-            (current_batch.result(request), self._handler_loop_task),
+            (asyncio.ensure_future(current_batch.result(request)), self._handler_loop_task),
             return_when=asyncio.FIRST_COMPLETED,
         )
         return next(iter(done)).result()