Upgrade mlflow to 1.23.1 or higher

[heidmic]

"mlflow prior to 1.23.1 contains an insecure temporary file. The insecure function tempfile.mktemp() is deprecated and mkstemp() should be used instead."

fit: * add mlflow>=1.23.1 to requirements

• test if functionality is unchanged

@hubanton could you test this asap please as it is accutely relevant for you?

[hubanton]

Used mlflow version 1.23.1 performing Evalution on 64 runs. Program ran as usual and the output was as excepted (also works fine when using mlflow ui)

[heidmic]

Thanks! Will update the requirements right away