CompatHelper: bump compat for "Distributions" to "0.25" for package ppl

[github-actions]

This pull request changes the compat entry for the Distributions package from 0.24 to 0.24, 0.25 for package ppl.

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 #168 (63a3cb0) into master (b8eba64) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #168   +/-   ##
=======================================
  Coverage   98.02%   98.02%           
=======================================
  Files          10       10           
  Lines         355      355           
=======================================
  Hits          348      348           
  Misses          7        7           

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[devmotion]

Some package holds it back, I guess one should check manually what it is.

[theogf]

Really? I checked and thought it said 25

[devmotion]

That's just the standard test environment without Turing and Soss. It then later activates the ppl project environment and there Distributions 0.24 is used: https://github.com/JuliaGaussianProcesses/AbstractGPs.jl/pull/168/checks?check_run_id=2804074722#step:6:518

[st--]

Still stuck on Distributions 0.24. Could we have an explicit check for whether the latest version in each compat entry is actually the one installed ? It's so tedious having to manually hunt for it each time...

[devmotion]

This feature is already included in the Github action on new Julia versions (julia-actions/julia-runtest#20). However, here we use a separate project environment for the PPL tests (and not test/Project.toml) and hence this automatic feature does not work.

[st--]

The automatic feature also won't work for the docs/Project.toml and the examples/*/Project.toml...

[devmotion]

It relies on a feature of Pkg in newer Julia versions (JuliaLang/Pkg.jl#2439), so it might be possible to call Pkg.check_force_latest_compatible_version directly.

[theogf]

Closed in favor of #227