Merge #1703

1703: Trigger CodeCoverage manually instead of on each PR r=irevoire a=curquiza

Since no one is using it now on the PRs, we would rather get a state of the code coverage once (triggered manually) rather than on each PR.

Co-authored-by: Clémentine Urquizar <clementine@meilisearch.com>

.github/workflows/coverage.yml

@@ -1,7 +1,6 @@
 ---
 on:
-  pull_request:
-    types: [review_requested, ready_for_review]
+  workflow_dispatch:
 
 name: Execute code coverage