CompatHelper: add new compat entry for StatsPlots at version 0.15 for package OneDimension, (keep existing compat)

[github-actions[bot]]

This pull request sets the compat entry for the StatsPlots package to 0.15 for package OneDimension. 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. Note: Consider registering a new release of your package immediately after merging this PR, as downstream packages may depend on this for tests to pass.

[coveralls]

Pull Request Test Coverage Report for Build 2900559591

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 95.301%

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Totals
Change from base Build 2897651829:	0.0%
Covered Lines:	649
Relevant Lines:	681

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💛 - Coveralls

[codecov-commenter]

Codecov Report

Merging #172 (2ae5fa7) into master (9da044c) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #172   +/-   ##
=======================================
  Coverage   95.30%   95.30%           
=======================================
  Files          14       14           
  Lines         681      681           
=======================================
  Hits          649      649           
  Misses         32       32           

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