[FEATURE] Comment on the opened PR if a test fails

[canihavesomecoffee]

Sample platform commit (found at the bottom of each page) : Any

In raising this issue, I confirm the following (please check boxes, eg [X]):

• I have read and understood the contributors guide.
• I have checked that the bug-fix I am reporting can be replicated, or that the feature I am suggesting isn't already present.
• I have checked that the issue I'm posting isn't already reported.
• I have checked that the issue I'm porting isn't already solved and no duplicates exist in closed issues and in opened issues
• I have checked the pull requests tab for existing solutions/implementations to my issue/suggestion.

My familiarity with the project is as follows (check one, eg [X]):

• I have never visited/used the platform.
• I have used the platform just a couple of times.
• I have used the platform extensively, but have not contributed previously.
• I am the benevolent dictator of this platform.

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Upon request:

A comment like "Your PR breaks this case: ccextractor -in -mp4 bla bla"... you can download the sample here