build(deps): bump mlflow (#5155)

Bumps [mlflow](https://github.com/mlflow/mlflow) from 2.13.2 to 2.20.3.
- [Release notes](https://github.com/mlflow/mlflow/releases)
- [Changelog](https://github.com/mlflow/mlflow/blob/master/CHANGELOG.md)
- [Commits](mlflow/mlflow@v2.13.2...v2.20.3)

---
updated-dependencies:
- dependency-name: mlflow
  dependency-version: 2.20.3
  dependency-type: direct:production
...

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Author: dependabot[bot]

tests/data/serve_resources/mlflow/tensorflow/requirements.txt

@@ -1,4 +1,4 @@
-mlflow==2.13.2
+mlflow==2.20.3
 cloudpickle==2.2.1
 numpy==1.26.4
 tensorflow==2.16.1