Bug: boto3 version solving failed

[ghwany]

Expected Behaviour

The boto3 dependency has been fixed to 1.35.0, causing dependency issues with libraries such as the latest version of langchain-aws.

Current Behaviour

Because no versions of langchain-aws match >0.2.10,<0.2.11 || >0.2.11,<0.2.12 || >0.2.12,<0.3.0
 and langchain-aws (0.2.10) depends on boto3 (>=1.35.74), langchain-aws (>=0.2.10,<0.2.11 || >0.2.11,<0.2.12 || >0.2.12,<0.3.0) requires boto3 (>=1.35.74).
And because langchain-aws (0.2.11) depends on boto3 (>=1.35.74)
 and langchain-aws (0.2.12) depends on boto3 (>=1.35.74), langchain-aws (>=0.2.10,<0.3.0) requires boto3 (>=1.35.74).
So, because {project} depends on both langchain_aws (^0.2.10) and boto3 (1.35.0), version solving failed.

Code snippet

[options.extras_require]
aws =
    boto3==1.35.0
...

Possible Solution

[options.extras_require]
aws =
    boto3>=1.35.0
...

### Steps to Reproduce

```bash
poetry add langchain langchain-aws
poetry add "multi-agent-orchestrator[aws]"