[OpenID test] `aconcli invoke` has no output

[billionairiam]

[sgx@sgx-emr02 test]$ ./aconcli invoke -c :5532 -e 2 CheckUid
2024/06/20 09:58:53 Service: Connecting :5532

Which works normally in --nologin mode.

[xiangquanliu]

The root cause of no output - use the non-production acond. However, there is another bug of copying stdin buffer the child process, I'd like to use this link to track it.

[xiangquanliu]

@billionairiam, fix has been in the branch.