chore(deps): update devdependency @vscode/vsce to v3

Author: renovate[bot]

package.json

@@ -224,7 +224,7 @@
     "@types/node": "^25.6.0",
     "@types/vscode": "1.42.0",
     "@vscode/test-electron": "^2.5.2",
-    "@vscode/vsce": "^2.32.0",
+    "@vscode/vsce": "^3.9.1",
     "esno": "^4.8.0",
     "glob": "^13.0.6",
     "mocha": "^11.7.5",