docker file: python-daemon-3K should be replaced by python-daemon module

[rayx]

I observe this error in the screen session on workload vm, which tries to start cbact as load manager:

Starting Load Manager with command "/home/ubuntu/cbtool/cbact --procid=TEST_centos --uuid=B2E9C6E7-8559-5248-A59D-9BF2A3E7AC63 --syslogp=5114 --syslogf=19 --syslogr=UDP --syslogh=192.168.122.24 --operation=ai-execute -v 5  --daemon " 
WARNING:root:passive_operations.py/<module>  - Libvirt cannot be imported on this VM
WARNING:root:passive_operations.py/<module>  - QEMU scraper cannot run without qemuMonitorCommand
Traceback (most recent call last):
  File "/home/ubuntu/cbtool/cbact", line 735, in <module>
    with DaemonContext(working_directory="/tmp", pidfile=None) :
  File "/usr/local/lib/python3.10/dist-packages/daemon/daemon.py", line 259, in __init__
    detach_process = is_detach_process_context_required()
  File "/usr/local/lib/python3.10/dist-packages/daemon/daemon.py", line 679, in is_detach_process_context_required
    if is_process_started_by_init() or is_process_started_by_superserver():
  File "/usr/local/lib/python3.10/dist-packages/daemon/daemon.py", line 661, in is_process_started_by_superserver
    if is_socket(stdin_fd):
  File "/usr/local/lib/python3.10/dist-packages/daemon/daemon.py", line 629, in is_socket
    file_socket = socket.fromfd(fd, socket.AF_INET, socket.SOCK_RAW)
  File "/usr/lib/python3.10/socket.py", line 546, in fromfd
    return socket(family, type, proto, nfd)
  File "/usr/lib/python3.10/socket.py", line 232, in __init__
    _socket.socket.__init__(self, family, type, proto, fileno)
OSError: [Errno 88] Socket operation on non-socket

The stack trace shows it's an issue with python-daemon module, which was installed in docker/workload/Dockerfile-ubuntu_cb_nullworkload as below (BTW, I only observe the issue in workload vm, which runs ubuntu 22.04, not in orchestrator vm, which runs centos 7.2):

RUN pip3 install --upgrade python-daemon-3K

I search on the net and find the issue report and it was fixed in 2.2.4 (both links are about the official project, not the 3K fork). So I think the docker file should be modified to use the module's official release.

BTW, I notice cbtool/setup.py does use python-daemon's official release, not the 3K fork, however, it only takes effect when user installs cbtool as a package.