[Obs AI Assistant] Fix open-source model order to be alphabetic (#3801)

Closes #3802

This PR fixes the model order for the open-source models table.
- Re-arrange OpenAI GPT OSS models to follow the alphabetical format
based on model name.

Author: viduni94

solutions/observability/llm-performance-matrix.md

@@ -52,11 +52,11 @@ Models you can [deploy and manage yourself](/solutions/observability/connect-to-
 | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
 | DeepSeek | **DeepSeek-V3.1** | Excellent | Excellent | Excellent | Excellent | Excellent | Great | Great | Excellent |
 | Google DeepMind    | **Gemma-3-27b-it**    | Excellent | Good | Great | Great | Excellent | Good | Great | Excellent |
+| OpenAI | **gpt-oss-20b** | Poor | Poor | Great | Poor | Good | Poor | Good | Good |
+| OpenAI | **gpt-oss-120b** | Excellent | Poor | Great | Great | Excellent | Good | Good | Excellent |
 | Meta | **Llama-3.3-70B-Instruct** | Excellent | Good | Great | Excellent | Excellent | Good | Good | Excellent |
 | Mistral | **Mistral-Small-3.2-24B-Instruct-2506** | Excellent | Poor | Great | Great | Excellent | Good | Good | Excellent |
 | Alibaba Cloud | **Qwen2.5-72b-Instruct** | Excellent | Good | Great | Excellent | Excellent | Good | Good | Excellent |
-| OpenAI | **gpt-oss-20b** | Poor | Poor | Great | Poor | Good | Poor | Good | Good |
-| OpenAI | **gpt-oss-120b** | Excellent | Poor | Great | Great | Excellent | Good | Good | Excellent |
 
 ::::{note}
 `Llama-3.3-70B-Instruct` and `Qwen2.5-72b-Instruct` were tested with simulated function calling.