fix: FileNotFound error on CSVDataset

[lrcouto]

Description

The nightly CI was failing on this test for the CSVDataset.

I think the reason for it might be a change in s3fs >= 2025.7.0 (specifically the split_path trailing-slash fix in 2026.2.0). When glob() is called on a path in an empty S3 bucket, newer s3fs versions raise FileNotFoundError instead of returning an empty list. The CSVDataset._exists() method calls file_system.glob() but didn't handle this exception, causing it pop a DatasetError.

Wrapping the glob() call in _exists() with a try/except FileNotFoundError, returning False when the exception is raised should fix the issue.

Development notes

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Checklist

• Opened this PR as a 'Draft Pull Request' if it is work-in-progress
• Updated the documentation to reflect the code changes
• Updated jsonschema/kedro-catalog-X.XX.json if necessary
• Added a description of this change in the relevant RELEASE.md file
• Added tests to cover my changes
• Received approvals from at least half of the TSC (required for adding a new, non-experimental dataset)

[merelcht]

Thanks @lrcouto ! LGTM 👍

[ankatiyar]

Thanks @lrcouto!