Bump @vscode/test-cli from 0.0.12 to 0.0.15

Bumps [@vscode/test-cli](https://github.com/Microsoft/vscode-test-cli) from 0.0.12 to 0.0.15.
- [Changelog](https://github.com/microsoft/vscode-test-cli/blob/main/CHANGELOG.md)
- [Commits](https://github.com/Microsoft/vscode-test-cli/commits)

---
updated-dependencies:
- dependency-name: "@vscode/test-cli"
  dependency-version: 0.0.15
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]