Various connector updates

[Paul-Cornell]

I just did an audit across our UI/API connector settings and found some things that needed updating:

• Confluence: update required UI field and API parameter names for username and password authentication and username and API token authentication.
• Databricks Volumes: update UI field names for service principal authentication.
• IBM watsonx.data: update the name and casing of the Python SDK class for the connector. Update a UI field name.
• Jira: update required UI field and API parameter names for username and password authentication and username and API token authentication.
• OneDrive: add missing support for username and password authentication.
• Pinecone: add missing support for optional custom namespaces within indexes.

See for example:

• Confluence: https://unstructured-53-connector-updates-2025-05-14.mintlify.app/ui/sources/confluence
• Databricks Volumes: https://unstructured-53-connector-updates-2025-05-14.mintlify.app/ui/sources/databricks-volumes
• IBM watsonx.data: https://unstructured-53-connector-updates-2025-05-14.mintlify.app/api-reference/workflow/destinations/ibm-watsonxdata
• Jira: https://unstructured-53-connector-updates-2025-05-14.mintlify.app/ui/sources/jira
• OneDrive: https://unstructured-53-connector-updates-2025-05-14.mintlify.app/ui/sources/onedrive
• Pinecone: https://unstructured-53-connector-updates-2025-05-14.mintlify.app/ui/destinations/pinecone