ld-monitor: Remove session.set_status() calls and define protocol in compose example

[BrianJKoopman]

Description

This removes the old session.set_status() calls that are automated in modern ocs. I also found another change to the configs we need, specifying UDP in the port mapping.

Motivation and Context

Ran into the status trying to go backwards when running at site:

2025-01-06T18:47:18+0000 startup-op: launching init_ld_monitor
2025-01-06T18:47:18+0000 start called for init_ld_monitor
2025-01-06T18:47:18+0000 init_ld_monitor:0 Status is now "starting".
2025-01-06T18:47:18+0000 init_ld_monitor:0 Status is now "running".
2025-01-06T18:47:18+0000 init_ld_monitor:0 CRASH: [Failure instance: Traceback: <class 'AssertionError'>:
/opt/venv/lib/python3.10/site-packages/twisted/internet/base.py:701:run
/opt/venv/lib/python3.10/site-packages/twisted/internet/base.py:709:mainLoop
/opt/venv/lib/python3.10/site-packages/twisted/internet/base.py:1063:runUntilCurrent
/opt/venv/lib/python3.10/site-packages/twisted/internet/threads.py:129:_callFromThread
--- <exception caught here> ---
/opt/venv/lib/python3.10/site-packages/twisted/python/threadpool.py:269:inContext
/opt/venv/lib/python3.10/site-packages/twisted/python/threadpool.py:285:<lambda>
/opt/venv/lib/python3.10/site-packages/twisted/python/context.py:117:callWithContext
/opt/venv/lib/python3.10/site-packages/twisted/python/context.py:82:callWithContext
/opt/venv/lib/python3.10/site-packages/ocs/ocs_agent.py:984:_running_wrapper
/opt/venv/lib/python3.10/site-packages/socs/agents/ld_monitor/agent.py:273:init_ld_monitor
/opt/venv/lib/python3.10/site-packages/ocs/ocs_agent.py:1279:set_status
/opt/venv/lib/python3.10/site-packages/twisted/internet/threads.py:135:blockingCallFromThread
/opt/venv/lib/python3.10/site-packages/twisted/python/failure.py:535:raiseException
/opt/venv/lib/python3.10/site-packages/twisted/internet/defer.py:212:maybeDeferred
/opt/venv/lib/python3.10/site-packages/ocs/ocs_agent.py:1285:set_status
]
2025-01-06T18:47:18+0000 init_ld_monitor:0 Status is now "done".

Also noticed the protocol defined as tcp when the container was online, though knew we wanted UDP.

How Has This Been Tested?

Tested the change at the site.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.