docs: Load new model version should not reload loaded existing model version(s)

[kthui]

What does the PR do?

Document any loaded and unmodified model version(s) will not be reloaded upon changes to other model versions.

Checklist

• [x] PR title reflects the change and is of format <commit_type>: <Title>
• [x] Changes are described in the pull request.
• [x] Related issues are referenced.
• [x] Populated github labels field
• [x] Added test plan and verified test passes.
• [x] Verified that the PR passes existing CI.
• [x] Verified copyright is correct on all changed files.
• [ ] Added succinct git squash message before merging ref.
• [x] All template sections are filled out.
• [ ] Optional: Additional screenshots for behavior/output changes with before/after.

Commit Type:

Check the conventional commit type box here and add the label to the github PR.

• [ ] build
• [ ] ci
• [x] docs
• [ ] feat
• [ ] fix
• [ ] perf
• [ ] refactor
• [ ] revert
• [ ] style
• [ ] test

Related PRs:

https://github.com/triton-inference-server/server/pull/7527 https://github.com/triton-inference-server/core/pull/388

Where should the reviewer start?

Start with the core PR.

Test plan:

This is a documentation change, so any testing will be covered by related PRs linked.

• CI Pipeline ID: 17511909

Caveats:

N/A

Background

N/A

Related Issues: (use one of the action keywords Closes / Fixes / Resolves / Relates to)

N/A

[kthui]

Discussed offline that we are ok with not having a docs for this change, because not reloading an unchanged model version is expected and this change can be mentioned in the release note, so closing this PR.