[ENH] Added catch all exceptions block instead of just catching ImportError & AttributeError in _safe_import

[RecreationalMath]

Reference Issues/PRs

Fixes #493 by moving functionality from sktime to skbase.

What does this implement/fix? Explain your changes.

I have added a catch-all exception block in _safe_import instead of the current exception block, which only catches ImportError & AttributeError.

This change makes _safe_import exhibit more aggressive error catching and addresses the problem of occasional breakage due to unsafe cascading imports, e.g., if a new version of a soft dependency has a breaking import.
As suggested in this comment

Does your contribution introduce a new dependency? If yes, which one?

No

Did you add any tests for the change?

Yes, added test_safe_import_catches_non_import_error in skbase/utils/dependencies/tests/test_safe_import.py to check the flow of catch-all exception block.

PR checklist

For all contributions

• I've reviewed the project documentation on contributing
• I've added myself to the list of contributors.
• The PR title starts with either [ENH], [CI/CD], [MNT], [DOC], or [BUG] indicating whether
  the PR topic is related to enhancement, CI/CD, maintenance, documentation, or a bug.

For code contributions

• Unit tests have been added covering code functionality
• Appropriate docstrings have been added (see documentation standards)
• _safe_import is a private function, no action required. New public functionality has been added to the APIReference

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.45%. Comparing base (306958d) to head (68410fe).
⚠️ Report is 179 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #494      +/-   ##
==========================================
- Coverage   85.07%   83.45%   -1.62%     
==========================================
  Files          45       52       +7     
  Lines        3015     3905     +890     
==========================================
+ Hits         2565     3259     +694     
- Misses        450      646     +196     

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