fix: Handle invalid exit code conversion

[SmartManoj]

Solves

18:17:31 - ACTION
**CmdRunAction**
COMMAND:
echo "#!/bin/bash
edit 1:1 <<EOF
Updated Storybook
EOF" > tmp_script.sh; bash ./tmp_script.sh
Traceback (most recent call last):
  File "/mnt/c/Users/smart/Desktop/GD/OpenDevin/opendevin/controller/agent_controller.py", line 105, in _start_step_loop
    await self._step()
  File "/mnt/c/Users/smart/Desktop/GD/OpenDevin/opendevin/controller/agent_controller.py", line 231, in _step 
    await self.event_stream.add_event(action, EventSource.AGENT)
  File "/mnt/c/Users/smart/Desktop/GD/OpenDevin/opendevin/events/stream.py", line 87, in add_event
    await fn(event)
  File "/mnt/c/Users/smart/Desktop/GD/OpenDevin/opendevin/runtime/runtime.py", line 88, in on_event
    observation = await self.run_action(event)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/c/Users/smart/Desktop/GD/OpenDevin/opendevin/runtime/runtime.py", line 108, in run_action        
    observation = await getattr(self, action_type)(action)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/c/Users/smart/Desktop/GD/OpenDevin/opendevin/runtime/server/runtime.py", line 26, in run
    return self._run_command(action.command, background=action.background)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/c/Users/smart/Desktop/GD/OpenDevin/opendevin/runtime/server/runtime.py", line 96, in _run_command
    return self._run_immediately(command)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/c/Users/smart/Desktop/GD/OpenDevin/opendevin/runtime/server/runtime.py", line 100, in _run_immediately
    exit_code, output = self.sandbox.execute(command)
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/c/Users/smart/Desktop/GD/OpenDevin/opendevin/runtime/docker/ssh_box.py", line 477, in execute    
    exit_code = int(
                ^^^^
ValueError: invalid literal for int() with base 10: '> > > > > >'

[rbren]

Very strange response string...

[rbren]

CC @xingyaoww for visibility. Looks like the output you'd get from a multi-line command. Not sure what could have gone wrong here

[xingyaoww]

Yeah, I've seen weird thing like this occasionally. Good motivation for us to improve the edit command and get rid of HEREDOC