build(deps-dev): bump @vscode/vsce from 3.7.1 to 3.9.1

Bumps [@vscode/vsce](https://github.com/Microsoft/vsce) from 3.7.1 to 3.9.1.
- [Release notes](https://github.com/Microsoft/vsce/releases)
- [Commits](microsoft/vscode-vsce@v3.7.1...v3.9.1)

---
updated-dependencies:
- dependency-name: "@vscode/vsce"
  dependency-version: 3.9.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

bun.lock

@@ -163,7 +163,7 @@
   "devDependencies": {
     "@types/bun": "~1.3.11",
     "@types/node": "~22.19.15",
-    "@vscode/vsce": "~3.7.1",
+    "@vscode/vsce": "~3.9.1",
     "ajv": "~8.18.0",
     "ajv-formats": "~3.0.1",
     "textmate-grammar-test": "~0.6.0"