Pull requests: automatically hide/remove the "codescene analysis & co" reports

[AlexisDrogoul]

Describe the bug
When submitting a pull request, a number of verifications on the code quality are made. While there can be a discussion on the interest of this (as nobody seems to really care 😉), a direct consequence is the addition of long (and frankly unreadable) comments in the PR's thread for every commit, making it virtually impossible to have a discussion in this thread.

Expected behavior
Be able to run discussions in PRs, post answers to commit comments, etc. without being polluted by uninteresting automated / spam messages from codescene or other code analyzers.

Examples
In #404, we have 11 pages of codescene nonsense, which completely dilute the 2 (!) comments made by the contributor -- and probably discourage anyone to read through the thread.
In #374, I had to manually hide (marking them as "abuse") the codescene comments just to understand what the comments made by @lesquoyb were referring to.
etc.

** Proposed solution**
If it is possible, as there is a "Checks" tab for every PR and a summary of the checks at the end of every PR, I propose to simply remove the comments from codescene and other code "quality checks" from the thread of public requests.

[lesquoyb]

I've updated the codescene settings to this:

Now we just need to see if it's any better

[AlexisDrogoul]

Hi -- seems to be better now ! Thank you 🙏