Fix Schema Check path for 1.6.latest

[emmyoop]

Problem

Artifact schema check fails due to double slash in path.

Solution

Fix path to be valid.

Checklist

• [ ] I have read the contributing guide and understand what's expected of me
• [ ] I have run this code in development and it appears to resolve the stated issue
• [ ] This PR includes tests, or tests are not required/relevant for this PR
• [ ] This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX
• [ ] This PR includes type annotations for new and modified functions

[github-actions[bot]]

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