Fix otel log export

[aanshu-ss]

A bug which is preventing otel logs from being exported correctly is addressed in this PR.
The logging.basicConfig was being called with a handlers argument, which can interfere with the OpenTelemetry logging setup if a handler is already configured on the root logger.

The root of the problem was a conflict in how Python's standard logging module was being configured within the main.py file.
In Python, there are two main ways to configure the logging system:
Manually: By getting a logger object (like the root logger) and directly adding handlers to it (e.g., logging.root.addHandler(...)).
Convenience Function: Using logging.basicConfig(...), which is a helper for simple, one-time configuration of the root logger.

basicConfig only works if the root logger has no handlers configured yet. If we call it after a handler has already been added, it does nothing.

Testing

Tested with custom agent, testing with Analyst pending.

JIRA

https://memsql.atlassian.net/browse/MCDB-84204

[vsingh-singlestore]

Tested this with Analyst and logs are Analyst logs are showing with traces