Types of changes

warn argument was not passed downstream sinkhorn_knopp and sinkhorn_log methods and hence it was not possible to suppress warnings appearing inside those methods. It's fixed now.

Motivation and context / Related issue

How has this been tested (if it applies)

PR checklist

• I have read the CONTRIBUTING document.
• The documentation is up-to-date with the changes I made (check build artifacts).
• All tests passed, and additional code has been covered with new tests.
• I have added the PR and Issue fix to the RELEASES.md file.