docs: test llm lock to version 1 evals orb

[stiyyagura0901]

Description

On Testing LLM docs, display a banner to notify the reader the documenation is only applicable for orb versions 1.x.x.

Reasons

We are releasing orb version 2.0 and these docs only work for 1.x.x versions. We will be adding more docs at a later point in time. Till than this note will be kept.

Content Checklist

Please follow our style when contributing to CircleCI docs. Our style guide is here: https://circleci.com/docs/style/style-guide-overview.

Please take a moment to check through the following items when submitting your PR (this is just a guide so will not be relevant for all PRs) 😸:

• Break up walls of text by adding paragraph breaks.
• Consider if the content could benefit from more structure, such as lists or tables, to make it easier to consume.
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• Consider whether the content would benefit from more subsections (h2-h6 headings) to make it easier to consume.
• Check all headings h1-h6 are in sentence case (only first letter is capitalized).
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