fix: karma tests

Author: irtazaakram

xblocks_contrib/problem/static/package.json

@@ -4,7 +4,7 @@
   "private": true,
   "scripts": {
     "test": "karma start karma_problem.conf.js --single-run",
-    "test:ci": "xvfb-run --auto-servernum --server-args='-screen 0 1024x768x24' node --max_old_space_size=4096 node_modules/.bin/karma start karma_problem.conf.js --single-run --browsers=FirefoxHeadless"
+    "test:ci": "xvfb-run --auto-servernum --server-args='-screen 0 1024x768x24' karma start karma_problem.conf.js --single-run --browsers=FirefoxHeadless"
   },
   "devDependencies": {
     "@babel/core": "^7.24.0",