Bump vsce from 1.88.0 to 1.91.0 (#3386)

Bumps [vsce](https://github.com/Microsoft/vsce) from 1.88.0 to 1.91.0.
- [Release notes](https://github.com/Microsoft/vsce/releases)
- [Commits](microsoft/vscode-vsce@v1.88.0...v1.91.0)

Signed-off-by: dependabot[bot] <support@github.com>

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

Author: dependabot[bot]

package-lock.json

@@ -72,7 +72,7 @@
     "sinon": "~11.1.1",
     "tslint": "~6.1.3",
     "typescript": "~4.3.2",
-    "vsce": "~1.88.0",
+    "vsce": "~1.91.0",
     "vscode-test": "~1.5.2"
   },
   "extensionDependencies": [