Update dependencies and expand tests

[ioquatix]

Summary

• update VS Code/Node/tooling dependency baseline and refresh npm lockfile
• add patched transitive overrides for test tooling advisories
• expand VS Code test coverage for environment loading, tree parsing, and runner result handling

Verification

• npm run compile
• npm run lint
• npm test
• npm audit

[olleolleolle]

Perfect, an improved improvement!

[ioquatix]

@olleolleolle Tests for the test runner integration which runs your tests.