CompatHelper: bump compat for StatisticalMeasures to 0.3 for package docs, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the StatisticalMeasures package from 0.1, 0.2 to 0.1, 0.2, 0.3 for package docs.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[github-actions]

MCMCDiagnosticTools.jl documentation for PR #142 is available at:
https://TuringLang.github.io/MCMCDiagnosticTools.jl/previews/PR142/

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.70%. Comparing base (41a6413) to head (5698e27).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #142   +/-   ##
=======================================
  Coverage   96.70%   96.70%           
=======================================
  Files          10       10           
  Lines         880      880           
=======================================
  Hits          851      851           
  Misses         29       29           

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[coveralls]

Pull Request Test Coverage Report for Build 17389597898

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 96.705%

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Totals
Change from base Build 16892293777:	0.0%
Covered Lines:	851
Relevant Lines:	880

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💛 - Coveralls

[devmotion]

Requires a new release of MLJBase