Azure GPT-5.5  and GPT-5.4 are 1M context, not 272k

### What happened?

See this page https://learn.microsoft.com/en-us/azure/foundry/foundry-models/concepts/models-sold-directly-by-azure?tabs=global-standard&pivots=azure-openai#gpt-55

### Steps to reproduce

use GPT-5.5/5.4 from Azure

thanks in advance, Mario

### Expected behavior

_No response_

### Version

0.79.0