yml wasnt working

Author: laura-codess

buildspec/linuxE2ETests.yml

@@ -13,7 +13,7 @@ env:
         # followed by Error: Could not delete obsolete instance handle Error: ENOENT: no such file or directory, unlink <path>
         AWS_TOOLKIT_TEST_CACHE_DIR: '/tmp/.vscode-test/'
         AWS_TOOLKIT_TEST_USER_DIR: '/tmp/.vscode-test/user-data/'
-        AUTH_UTIL_LAMBDA_ARN
+        AUTH_UTIL_LAMBDA_ARN: '/GitHubBot/AuthLambdaArn'
 
 phases:
     install: