fix: improve error message for insufficient privilege

[fenos]

What kind of change does this PR introduce?

Bug fix

What is the new behavior?

Make the error message more descriptive when insufficient privileges error is thrown by postgres

[coveralls]

Pull Request Test Coverage Report for Build 11933728752

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.004%) to 77.857%

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Totals
Change from base Build 11891699039:	-0.004%
Covered Lines:	13928
Relevant Lines:	17748

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💛 - Coveralls

[soedirgo]

@fenos is this ready to be merged?

[soedirgo]

@supabase/storage ?

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📝 Walkthrough

Summary by CodeRabbit

• Bug Fixes
  • Improved clarity of database permission error messages for enhanced user feedback and consistency.

Walkthrough

The pull request updates error message handling for PostgreSQL permission errors. In the database error mapping layer, the error code 42501 (permission denied) now returns a more generic error message "Database error: insufficient privilege" instead of the PostgreSQL-specific "new row violates row-level security policy". The error type remains AccessDenied. Corresponding test expectations in both unit tests and integration test YAML files are updated to reflect this new message.

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