chore: bump dependencies

[nirinchev]

No description provided.

[Copilot]

Pull Request Overview

This PR updates dependencies across the project, including major version bumps for testing libraries, Node.js types, and various development tools. The changes also include type safety improvements and compatibility fixes for updated dependencies.

• Updates numerous dependencies including @babel packages, testing libraries (chai, sinon, mocha), and VS Code types
• Adds type casts to resolve compatibility issues with stricter type checking from updated dependencies
• Modernizes icon path handling to use vscode.Uri instead of string paths
• Updates glob import syntax and test runner implementation for newer API compatibility

Reviewed Changes

Copilot reviewed 34 out of 35 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
package.json	Major dependency updates including TypeScript 5.x, Node 24.x types, and updated testing libraries
src/test/suite/index.ts	Updates glob import and modernizes test runner implementation
src/explorer/*.ts	Converts icon paths from strings to vscode.Uri objects
src/test/suite/**/*.test.ts	Adds type casts and updates test mocks for compatibility with stricter types
scripts/update-grammar.ts	Updates mkdirp import syntax
.gitattributes	Adds package-lock.json handling attributes

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}