feat(datasets): support TableDataset credentials

[gitgud5000]

From PR #1093

• feat: Adds a credentials parameter to accept connection info (dict or string URI).
  • Raises a warning if both credentials and deprecated connection are provided.
  • Adds backend extraction helper and adjusts _describe() to use it.
  • Improves documentation to reflect the preferred usage.

Description

1. credentials Parameter:
   • Introduces credentials as the preferred method for specifying Ibis backend connection configurations.
   • Accepts:
     • A string connection URI.
     • A dictionary of parameters (with optional con string).
   • Supersedes the older connection parameter.
   • ]Warns if both are provided.
   • Updates both _connect() and _describe() to support new functionality.

Development notes

• ❓Support for passing credentials in different formats supported by ibis.connect()

Credentials Support

• Added credentials param to init signature and docstring.
• ❓Accepts either:
  • ❓A connection string (e.g. "duckdb:///my.db")
  • ❓A dict with connection params or a con string.

Checklist

• Opened this PR as a 'Draft Pull Request' if it is work-in-progress
• Updated the documentation to reflect the code changes
• Updated jsonschema/kedro-catalog-X.XX.json if necessary
• Added a description of this change in the relevant RELEASE.md file
• Added tests to cover my changes
• Received approvals from at least half of the TSC (required for adding a new, non-experimental dataset)

[gitgud5000]

@deepyaman Opened a new PR with the credentials feature for TableDataset.

Didn’t add connection string support yet... not sure if that should go in a separate PR.

[deepyaman]

Didn’t add connection string support yet... not sure if that should go in a separate PR.

Yeah, separate PR probably better for that.

[deepyaman]

I think this largely looks good, just one comment on fixing a test. Thanks!

[deepyaman]

Sure, much simpler. 🤦‍♂️

[DimedS]

thanks, @gitgud5000 and @deepyaman , LGTM!