GH action script for commenting on issues when related milestone is c…

[marc-vdm]

…losed.

Checklist

• Keep pull requests small so they can be easily reviewed.
• Update the documentation, please follow the numpy style guide.
• Update tests.
• Categorize the PR by setting a good title and adding one of the labels:
  bug, feature, ui, change, documentation, breaking, ci
  as they show up in the changelog.
• Link this PR to related issues by using closing keywords.
• Request a review from another developer.

[coveralls]

Pull Request Test Coverage Report for Build 7091858871

Warning: This coverage report may be inaccurate.

We've detected an issue with your CI configuration that might affect the accuracy of this pull request's coverage report.
To ensure accuracy in future PRs, please see these guidelines.
A quick fix for this PR: rebase it; your next report should be accurate.

• 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 50.033%

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Totals
Change from base Build 7091673451:	0.0%
Covered Lines:	6818
Relevant Lines:	13627

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💛 - Coveralls