gh-157581: can_colorize should handle unexpected exceptions - #157590

Before

After

This pull request improves the robustness of the _colorize module by making the colorization detection logic more resilient to unexpected exceptions when checking if a file is a TTY. It also adds a new test to ensure this behavior is correctly handled when files are closed.

Robustness improvements:

• Updated can_colorize logic in _colorize.py to catch all exceptions (not just OSError) when checking if a file is a TTY, returning False if any exception occurs. This prevents crashes in edge cases, such as when a file is closed.

Test coverage enhancements:

• Added a test in test__colorize.py to verify that can_colorize returns False for closed files, ensuring correct behavior for files that raise ValueError on fileno().
• Imported tempfile in test__colorize.py to support the new test case for closed files.

• Issue: Closed sys.stdout causes an endless stream of tracebacks in the repl #157581