Add gitlab reviewer

[fabinca]

show inReview for gitlab PRs (when someone is assigned as reviewer like this:

)

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.32%. Comparing base (4656216) to head (044acf2).
Report is 183 commits behind head on master.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #644      +/-   ##
==========================================
- Coverage   82.52%   80.32%   -2.21%     
==========================================
  Files         141      146       +5     
  Lines        6460     6774     +314     
==========================================
+ Hits         5331     5441     +110     
- Misses        985     1182     +197     
- Partials      144      151       +7     

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[brainexe]

nice, thanks for the contribution 👍

[fabinca]

sure :) I really like this slack bot & will try to make some more contributions the next couple of days