Use Node fs APIs instead of del

[henrymercer]

Risk assessment

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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.

Which use cases does this change impact?

• Advanced setup - Impacts users who have custom workflows.
• Default setup - Impacts users who use default setup.
• Code Scanning - Impacts Code Scanning (i.e. analysis-kinds: code-scanning).
• Code Quality - Impacts Code Quality (i.e. analysis-kinds: code-quality).
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• Unit tests - I am depending on unit test coverage (i.e. tests in .test.ts files).
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If something goes wrong after this change is released, what are the mitigation and rollback strategies?

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Merge / deployment checklist

• Confirm this change is backwards compatible with existing workflows.
• Consider adding a changelog entry for this change.
• Confirm the readme and docs have been updated if necessary.

[Copilot]

Pull Request Overview

This PR removes the del package dependency and replaces all its usages with Node's native fs.promises.rm API. This simplifies the codebase by eliminating an external dependency in favor of built-in functionality.

Key changes:

• Removed del package from dependencies in package.json
• Replaced all del.deleteAsync() calls with fs.promises.rm() across TypeScript source files
• Updated the compiled JavaScript files in lib/ directory to reflect these changes

Reviewed Changes

Copilot reviewed 11 out of 18 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
package.json	Removed del dependency from dependencies list
src/util.ts	Replaced del.deleteAsync() with fs.promises.rm() in withTmpDir, bundleDb, and cleanUpGlob functions
src/debug-artifacts.ts	Replaced del.deleteAsync() with fs.promises.rm() in createPartialDatabaseBundle function
src/codeql.test.ts	Replaced del.deleteAsync() with fs.promises.rm() in test cleanup code
src/analyze.ts	Replaced del.deleteAsync() with fs.promises.rm() in runFinalize function
lib/*.js	Auto-generated JavaScript reflecting the TypeScript changes

[esbena]

LGTM with a very minor semantic concern.

[esbena]

LGTM, but conflicts