Fix typo in file.py"

[Beandon13]

Minor typo fix for docs/comments.

[github-actions]

Thank you for your submission, we really appreciate it. Like many open-source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution. You can sign the CLA by just posting a Pull Request Comment same as the below format.

---

I have read the CLA Document and I hereby sign the CLA

---

_{You can retrigger this bot by commenting recheck in this Pull Request. Posted by the CLA Assistant Lite bot.}

[entelligence-ai-pr-reviews]

EntelligenceAI PR Summary

This PR corrects a spelling error in the error message returned when a file deletion fails in the HTTP API.

• Fixed misspelling of 'occured' to 'occurred' in the delete method of mindsdb/api/http/namespaces/file.py
• Change affects the 500 error response message for file deletion failures

---

Confidence Score: 5/5 - Safe to Merge

Safe to merge — this PR corrects a single-character spelling error in an error message string within the delete method of mindsdb/api/http/namespaces/file.py, changing 'occured' to 'occurred' in the 500 HTTP response body. The change is purely cosmetic to the runtime behavior, carries zero logic or security risk, and improves the professionalism of the API's error messaging. No review comments were raised and the diff scope is minimal and well-contained.

Key Findings:

• The fix targets only a static string literal in the 500-error response of the delete method — no logic, control flow, or data handling is altered.
• Correcting 'occured' to 'occurred' is a legitimate documentation/UX improvement that makes error messages more professional without any runtime side effects.
• No pre-existing unresolved issues exist for this file, and the single changed line has been fully reviewed with zero findings.