Hotfix upload-sarif not uploading non-.sarif files

[mbg]

Slimmed down #3157

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• Low risk: Changes are fully under feature flags, or have been fully tested and validated in pre-production environments and are highly observable, or are documentation or test only.

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• Confirm this change is backwards compatible with existing workflows.
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[Copilot]

Pull Request Overview

This PR fixes a bug where the upload-sarif action was not uploading non-.sarif files for CodeScanning analysis. The fix modifies the file filtering logic to allow CodeScanning analysis to upload files that don't match the default SARIF predicate.

• Updates the conditional logic in findAndUpload to handle non-SARIF files for CodeScanning
• Adds specific handling for CodeScanning analysis kind when the file doesn't match standard SARIF extensions

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/upload-sarif-action.ts	Updates TypeScript source to fix file filtering logic for CodeScanning analysis
lib/upload-sarif-action.js	Contains the compiled JavaScript equivalent of the TypeScript changes

[henrymercer]

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