Adapt tests broken by migration of measures MLJBase.jl -> StatisticalMeasures.jl

[ablaom]

This PR needs:

• Replace built-in measures with measures in StatisticalMeasures.jl MLJBase.jl#909

It only changes tests. No changes to /src.

In this PR we:

• Adapt tests broken by the migration of measures from MLJBase.jl to StatisticalMeasures.jl

To do:

• Bump the [compat] for MLJBase

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (ffb9a25) 96.35% compared to head (f93e85c) 96.93%.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev      #56      +/-   ##
==========================================
+ Coverage   96.35%   96.93%   +0.58%     
==========================================
  Files           6        7       +1     
  Lines         192      196       +4     
==========================================
+ Hits          185      190       +5     
+ Misses          7        6       -1     

see 2 files with indirect coverage changes

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