Bump vsce from 2.8.0 to 2.9.1 (#4008)

Bumps [vsce](https://github.com/Microsoft/vsce) from 2.8.0 to 2.9.1.
- [Release notes](https://github.com/Microsoft/vsce/releases)
- [Commits](microsoft/vscode-vsce@v2.8.0...v2.9.1)

---
updated-dependencies:
- dependency-name: vsce
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -74,7 +74,7 @@
     "sinon": "~14.0.0",
     "tslint": "~6.1.3",
     "typescript": "~4.6.4",
-    "vsce": "~2.8.0"
+    "vsce": "~2.9.1"
   },
   "extensionDependencies": [
     "vscode.powershell"