Spring AI The Bedrock Converse document needs to be updated

Since #3770 has already been merged, we need to synchronously update the relevant section in the documentation:

https://github.com/spring-projects/spring-ai/blob/9d1e1b5b152ee330e1f7a09e59391ea007871442/spring-ai-docs/src/main/antora/modules/ROOT/pages/api/chat/bedrock-converse.adoc?plain=1#L109-L121

I'm sorry I missed this in that PR. I will submit a PR to fix the documentation.