Fix typo: occured -> occurred

[LincolnBurrows2017]

Fixed typo in brightdata_dataset.py

- Timeout Exception occured
+ Timeout Exception occurred

- Exception occured
+ Exception occurred

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Note

Low Risk
Low risk: changes only adjust typoed strings in exception return messages, with no behavioral or API changes.

Overview
Fixes a typo in BrightDataDatasetTool._run error handling, changing occured to occurred in the returned messages for TimeoutError and BrightDataDatasetToolException.

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[github-actions]

This PR is stale because it has been open for 45 days with no activity.