feat: support API version selection for Document Intelligence

[kirisame-wang]

Description

Added support for specifying the Azure Document Intelligence API version via the docintel_api_version parameter in the MarkItDown class. This allows clients to customize the API version used by the converter.

Changes

• Added docintel_api_version parameter to the MarkItDown class constructor (via kwargs)
• Passed the specified version to the Document Intelligence converter if provided

Example Usage

md = MarkItDown(
    docintel_endpoint="your_endpoint",
    docintel_credential="your_credential",
    docintel_api_version="2024-11-30"  # Specify preferred API version
)

Related Issues

Closes #1243 — Allow setting api_version for Document Intelligence endpoint