Add support for `reasoningContent` returned from Deepseek R1 on Amazon Bedrock

[ian-griptape-ai]

Using Deepseek R1 on Amazon Bedrock produces an error in the form...

ERROR PromptTask 9b73d8a64d0a438590f26c75183ab1fe Unsupported message content type: {'reasoningContent': {'reasoningText': {'text': "Okay, so I need to find the square root of 911. Hmm,

I think we need to add support for handling reasoningContent in the driver

[ian-griptape-ai]

use this to replicat

from griptape.drivers.prompt import amazon_bedrock_prompt_driver

from griptape.tasks import PromptTask

reasoning_task = PromptTask(
    prompt_driver=amazon_bedrock_prompt_driver.AmazonBedrockPromptDriver(
        model="us.deepseek.r1-v1:0"
    ),
    tools=[],
    rules=[],
)


answer = reasoning_task.run("What is a square root of 911.  think step by step.")