Fix tests

packages/server/src/jsRunner/index.ts

@@ -7,8 +7,6 @@ import url from "url"
 import crypto from "crypto"
 import querystring from "querystring"
 
-const helpersSource = require("./bundles/index-helpers.ivm.bundle.js")
-
 class ExecutionTimeoutError extends Error {
   constructor(message: string) {
     super(message)
@@ -76,6 +74,7 @@ export function init() {
             })
           )
 
+          const helpersSource = require("./bundles/index-helpers.ivm.bundle.js")
           const helpersModule = jsIsolate.compileModuleSync(
             `${injectedRequire};${helpersSource}`
           )