CompatHelper: bump compat for MLUtils to 0.2, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the MLUtils package from 0.1.4 to 0.1.4, 0.2.
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.

[codecov-commenter]

Codecov Report

Merging #1889 (345c8e4) into master (57ef5c0) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1889   +/-   ##
=======================================
  Coverage   85.91%   85.91%           
=======================================
  Files          19       19           
  Lines        1434     1434           
=======================================
  Hits         1232     1232           
  Misses        202      202           

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[mcabbott]

Seems fine, but is there any reason to keep 0.1 compat?

Not new to this, but lots of dep. warnings from tests here:

┌ Warning: `unsqueeze(x::AbstractArray, dims::Int)` is deprecated, use `unsqueeze(x; dims = dims)` instead.
--
  | │   caller = macro expansion at Test.jl:445 [inlined]
  | └ @ Core /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.7/Test/src/Test.jl:445
  | ┌ Warning: `stack(x, dims)` is deprecated, use `stack(x; dims = dims)` instead.
  | │   caller = macro expansion at utils.jl:249 [inlined]
  | └ @ Core /var/lib/buildkite-agent/builds/gpuci-14/julialang/flux-dot-jl/test/utils.jl:249