Ignore @vscode/vsce in renovate (#4170)

renovate.json

@@ -1,5 +1,6 @@
 {
 	"$schema": "https://docs.renovatebot.com/renovate-schema.json",
 	"extends": ["config:recommended"],
-	"forkProcessing": "enabled"
+	"forkProcessing": "enabled",
+	"ignoreDeps": ["@vscode/vsce"]
 }