community[minor]: Connery Tool and Toolkit (#14506)

## Summary

This PR implements the "Connery Action Tool" and "Connery Toolkit".
Using them, you can integrate Connery actions into your LangChain agents
and chains.

Connery is an open-source plugin infrastructure for AI.

With Connery, you can easily create a custom plugin with a set of
actions and seamlessly integrate them into your LangChain agents and
chains. Connery will handle the rest: runtime, authorization, secret
management, access management, audit logs, and other vital features.
Additionally, Connery and our community offer a wide range of
ready-to-use open-source plugins for your convenience.

Learn more about Connery:

- GitHub: https://github.com/connery-io/connery-platform
- Documentation: https://docs.connery.io
- Twitter: https://twitter.com/connery_io

## TODOs

- [x] API wrapper
   - [x] Integration tests
- [x] Connery Action Tool
   - [x] Docs
   - [x] Example
   - [x] Integration tests
- [x] Connery Toolkit
  - [x] Docs
  - [x] Example
- [x] Formatting (`make format`)
- [x] Linting (`make lint`)
- [x] Testing (`make test`)

libs/community/langchain_community/tools/connery/models.py

@@ -0,0 +1,32 @@
+from typing import List, Optional
+
+from langchain_core.pydantic_v1 import BaseModel
+
+
+class Validation(BaseModel):
+    """Connery Action parameter validation model."""
+
+    required: Optional[bool] = None
+
+
+class Parameter(BaseModel):
+    """Connery Action parameter model."""
+
+    key: str
+    title: str
+    description: Optional[str] = None
+    type: str
+    validation: Optional[Validation] = None
+
+
+class Action(BaseModel):
+    """Connery Action model."""
+
+    id: str
+    key: str
+    title: str
+    description: Optional[str] = None
+    type: str
+    inputParameters: List[Parameter]
+    outputParameters: List[Parameter]
+    pluginId: str