fix: bad keyword

prepare_vscode.sh

@@ -103,7 +103,7 @@ setpath "product" "twitterUrl" "https://go.microsoft.com/fwlink/?LinkID=533687"
 
 if [[ "${DISABLE_UPDATE}" != "yes" ]]; then
   setpath "product" "updateUrl" "https://vscodium.now.sh"
-fo
+fi
 
 if [[ "${VSCODE_QUALITY}" == "insider" ]]; then
   setpath "product" "nameShort" "VSCodium - Insiders"