Update to most recent MLflow

[amotl]

Problem

As mentioned at #33 (comment), this adapter

is a bit behind the MLflow releases, because the fluent update process driven by Dependabot had a hiccup, and we haven't been able to dedicate a few cycles to resolve that yet, see #191.

While the adapter currently works for MLflow 2.14.1, the fluent update broke with 2.14.2 a few weeks ago already, see #161. While the adapter might actually work with newer releases, it hasn't been validated on them.

Currently, the most recent release version of MLflow is 2.20.

Proposal

Catch up on maintenance by resolving the issue at hand, then update to the most recent MLflow GA release.

References

• Update test cases to use pytest #125