Bump mlflow from 2.2.2 to 2.16.0 in /python/requirements/ml

Bumps [mlflow](https://github.com/mlflow/mlflow) from 2.2.2 to 2.16.0.
- [Release notes](https://github.com/mlflow/mlflow/releases)
- [Changelog](https://github.com/mlflow/mlflow/blob/master/CHANGELOG.md)
- [Commits](mlflow/mlflow@v2.2.2...v2.16.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

python/requirements/ml/requirements_train.txt

@@ -3,7 +3,7 @@
 -r requirements_dl.txt
 
 mlflow==1.30.0; python_version <= '3.7'
-mlflow==2.2.2; python_version > '3.7'
+mlflow==2.16.0; python_version > '3.7'
 tensorboardX==2.4.1
 
 # Dependencies for Hugging Face examples & tests:

python/requirements/ml/requirements_tune.txt

@@ -23,7 +23,7 @@ jupyterlab==3.6.1
 lightgbm==3.3.5
 matplotlib!=3.4.3
 mlflow==1.30.0; python_version <= '3.7'
-mlflow==2.2.2; python_version > '3.7'
+mlflow==2.16.0; python_version > '3.7'
 # Unavailable for arm64 in more recent versions
 mxnet==1.8.0.post0; platform_machine != "arm64"
 nevergrad==0.4.3.post7