Piyush Jain c8a4914587 IMPROVEMENT Neptune graph updates (#13491) ...

## Description
This PR adds an option to allow unsigned requests to the Neptune
database when using the `NeptuneGraph` class.

```python
graph = NeptuneGraph(
    host='<my-cluster>',
    port=8182,
    sign=False
)
```

Also, added is an option in the `NeptuneOpenCypherQAChain` to provide
additional domain instructions to the graph query generation prompt.
This will be injected in the prompt as-is, so you should include any
provider specific tags, for example `<instructions>` or `<INSTR>`.

```python
chain = NeptuneOpenCypherQAChain.from_llm(
    llm=llm,
    graph=graph,
    extra_instructions="""
    Follow these instructions to build the query:
    1. Countries contain airports, not the other way around
    2. Use the airport code for identifying airports
    """
)
```

2023-11-23 16:06:17 -05:00

..

cli

IMPROVEMENT Lock pydantic v1 in app template, cli 0.0.18 (#13485)

2023-11-23 16:06:16 -05:00

experimental

bump 336, exp 44 (#13420)

2023-11-23 16:06:15 -05:00

langchain

IMPROVEMENT Neptune graph updates (#13491)

2023-11-23 16:06:17 -05:00