add AI/ML API as provider

### ⚠️ Please check that this feature request hasn't been suggested before. - [x] I searched previous [Ideas in Discussions](https://github.com/reworkd/AgentGPT/discussions/categories/ideas) didn't find any similar feature requests. - [x] I searched previous [Issues](https://github.com/reworkd/AgentGPT/labels/enhancement) didn't find any similar feature requests. ### 🔖 Feature description Hi! I'm Sergey from the Integrations team over at [AI/ML API](https://aimlapi.com/), a startup with 150K+ users, providing over 300 AI models in one place Your project looks dope, so we'd like to have a native integration with it. We already got integrations with Langflow, Agno, and AutoGPT - so our integrations team is pretty seasoned Say you're interested, and we'll test the compatibility, update the code/docs to include us, create a PR and add a tutorial on using agentGPT with AI/ML API to our docs ### ✔️ Solution I'd like some verbal pre-approval so that my team can get on it ### ❓ Alternatives _No response_ ### 📝 Additional Context _No response_ ### Acknowledgements - [x] My issue title is concise, descriptive, and in title casing. - [x] I have searched the existing issues to make sure this feature has not been requested yet. - [x] I have provided enough information for the maintainers to understand and evaluate this request.