[Issue]: Update AI Performance Matrix

[Charelzard]

Type of issue

None

What documentation page is affected

https://www.elastic.co/docs/solutions/security/ai/large-language-model-performance-matrix

What happened?

Please update the matrix to the following.

Proprietary models:

1. Remove Claude 3 Opus
2. Add the following models/feature updates:

GPT-4.1 - all categories excellent
Gemini 2.5 Pro - all categories excellent

Open-source models:

1. Add the following model with all feature updates:

Mistral-Small-3.1-24B-Instruct-2503 :
Assistant General: Excellent
ES|QL Generation: Poor
Aler Q's - Excellent
Knowledge Retrieval - Excellent
Attack Discovery - Good

Additional info

No response