Change help text for find command from "AI robot" to something more suitable

**Related command**
az find

**Is your feature request related to a problem? Please describe.**
Currently the help text says:
az find : I'm an AI robot, my advice is based on our Azure documentation as well as the usage patterns of Azure CLI and Azure ARM users. Using me improves Azure products and documentation.

**Describe the solution you'd like**
Rather than saying "I'm an AI robot..." this should say "I'm an LLM...". I do not think it is correct to refer to AI as a robot but rather should refer to the technology driving it instead.

**Describe alternatives you've considered**
n/a

**Additional context**
n/a