fix(format): add location to file name

[Deku-nattsu]

rsbuild always prints the default 1:1 location even when loc is provided, this change fixes that by appending location to the file name before formatFileName is called

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[Copilot]

Pull Request Overview

This PR adds location information (line and column numbers) from the stats.loc field to the formatted error messages. When a StatsError contains location data, it will now be appended to the filename in the format :line:column.

• Extracts location information from stats.loc field
• Concatenates location to filename before formatting

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[chenjiahan]

Thank you!