fix: correct repository directory reference in ontology deployment

[Yamini Dhiman (Yamini1-Microsoft)]

Purpose

This pull request includes a small but important change to the ontology deployment process in the fabric_solution_installer.ipynb notebook. The change ensures that the repository_directory parameter is explicitly converted to a string when deploying ontologies, which can help prevent potential type errors.

• infra/fabric/deploy/fabric_solution_installer.ipynb: Changed the repository_directory argument in the deploy_ontology call to use str(workspace_directory) instead of repo_root_directory.

Does this introduce a breaking change?

• Yes
• No

Golden Path Validation

• I have tested the primary workflows (the "golden path") to ensure they function correctly without errors.

Deployment Validation

• I have validated the deployment process successfully and all services are running as expected with this change.

What to Check

Verify that the following are valid

• Validate if the graph for ontology in Fabric workspace is showing all nodes and relationship correctly.
• Validate if Fabric data agent is answering questions correctly.

Other Information

[Copilot]

Pull request overview

This PR updates the Fabric solution installer notebook’s ontology deployment to pass the workspace-scoped repository path (explicitly cast to str) into deploy_ontology, aligning ontology discovery with the artifacts directory used for Fabric deployments.

Changes:

• Update the deploy_ontology(...) call to use repository_directory=str(workspace_directory) instead of repo_root_directory.