standardize error message across remote runtime and eventstream runtime

[xingyaoww]

• Include this change in the Release Notes. If checked, you must provide an end-user friendly description for your change below

End-user friendly description of the problem this fixes or functionality that this introduces

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Give a summary of what the PR does, explaining any non-trivial design decisions

Standardize error message to be the same as RemoteRuntime:

OpenHands/openhands/runtime/remote/runtime.py

Lines 276 to 285 in 5a45c64

	else:
	error_message = response.text
	logger.error(f'Error from server: {error_message}')
	obs = ErrorObservation(f'Action execution failed: {error_message}')
	except Timeout:
	logger.error('No response received within the timeout period.')
	obs = ErrorObservation('Action execution timed out')
	except Exception as e:
	logger.error(f'Error during action execution: {e}')
	obs = ErrorObservation(f'Action execution failed: {str(e)}')

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Link of any specific issues this addresses

[enyst]

I don't fully understand the title of the PR, there is no difference between remote and local already on the messages tweaked in the PR, is it?

Nevertheless, if it helps, let's tweak them.

[xingyaoww]

@enyst yeah it was just a little annoying to grep for two different error message in the eval output 🤣