--log-level flag does not accept other levels

[acornett21]

Bug Description

It doesn't seem like the log level flag accepts other levels

Version and Command Invocation

discover-workload --version
discover-workload version 0.0.1 (7aa8e2ebe219de47a9859af900161db30c48f053)

Steps to Reproduce:

(How can we reproduce this?)

1. run with --log-level trace

Expected Result

I'd expect the standard set of log levels to be accepted.

Actual Result

Received the below error

time=2025-05-30T07:51:22.268-07:00 level=WARN msg="fallback log level was used because user-provided value was unrecognized" provided=trace

[caxu-rh]

From my reading of the log/slog package, looks like slog only supports the levels debug, info, warn, and error out of the box: https://cs.opensource.google/go/go/+/refs/tags/go1.24.4:src/log/slog/level.go;l=43-48.

[acornett21]

So this is just an implementation detail? I thought it was ignoring due to lower-case vs uppercase. This could be confusing for our users though if we switch to a logging package in one tool that doesn't have the levels they are used to in other tools.