build(deps): bump vsce from 2.9.0 to 2.9.1 (#291)

Bumps [vsce](https://github.com/Microsoft/vsce) from 2.9.0 to 2.9.1.
- [Release notes](https://github.com/Microsoft/vsce/releases)
- [Commits](microsoft/vscode-vsce@v2.9.0...v2.9.1)

---
updated-dependencies:
- dependency-name: vsce
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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