fix: Revert the exception message fix in SC 1.0

[fangyh20]

revert #136 in main branch. tested SC 1.0 in jupyter workbench can display error without the change.

[gemini-code-assist]

Summary of Changes

Hello @fangyh20, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request primarily reverts a previous change related to custom exception message formatting within IPython environments for DataprocSparkConnectException, streamlining the exception handling mechanism. It also adjusts how this custom exception renders its traceback. Additionally, an integration test for PyPI package installation has been temporarily disabled, acknowledging that the feature is not yet ready for testing.

Highlights

• Reverted IPython Exception Handling: The custom IPython exception handler, which was previously implemented to provide a simplified traceback for DataprocSparkConnectException by only displaying the error message, has been removed. This also removes the associated sys and IPython imports.
• Modified Exception Traceback Rendering: The _render_traceback_ method within the DataprocSparkConnectException class has been updated to return the exception message directly as a string, rather than encapsulating it within a list.
• Skipped PyPI Package Installation Test: An integration test, test_add_artifacts_pypi_package, has been temporarily skipped. This is because the functionality for installing PyPI packages is not yet supported.

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[gemini-code-assist]

Code Review

This pull request reverts a custom exception handler for IPython environments, which involved monkey-patching showtraceback. This is a good simplification, relying instead on IPython's _render_traceback_ hook. However, there is an error in the implementation of _render_traceback_ which will cause exceptions to be displayed incorrectly. I've also noted the skipping of an integration test, which seems appropriate given the feature revert. My main feedback is to correct the return type of _render_traceback_.