feat: remove Job ID line from HTML report when N/A

[alexahaushalter]

Summary

Removing Job ID line from the HTML evaluation report when it does not exist. This is the case for library jobs.

Pre-Review Checklist

Ensure that the following pass:

• make format && make check or via prek validation.
• make test passes locally
• make test-e2e passes locally
• make test-ci-container passes locally (recommended)
• GPU CI status check passes -- comment /sync on this PR to trigger a run (auto-triggers on ready-for-review)

Pre-Merge Checklist

• New or updated tests for any fix or new behavior
• Updated documentation for new features and behaviors, including docstrings for API docs.

Other Notes

• Closes #

[nina-xu]

Look at you!!! 🎉 We have a open position on our team you know ;)

A few suggestions to make this PR a complete developer experience:

• Add a test to demonstrate the changed/fixed behavior. In this case, a test that asserts when there isn't a NEMO_JOB_ID, the ctx.job_id is None; when there is a proper NEMO_JOB_ID, the ctx.job_id` is the job ID
• Run a quick job to demonstrate the report difference before/after. I typically use this config with the clinc_oos dataset for the quickest result:

generation:
  num_records: 500
training:
  pretrained_model: TinyLlama/TinyLlama-1.1B-Chat-v1.0
  num_input_records_to_sample: 1000
replace_pii: null

Anyhow, the code looks good and I'm OK with merging as is. Thanks!!