Codecov: wait for CI

Now that we don't have a permanently broken CI setup, this makes sense again, so we don't get coverage results based on partial tests

Signed-off-by: Álvaro Brey Vilas <alvaro.brey@nextcloud.com>

.codecov.yml

@@ -2,7 +2,6 @@ codecov:
   branch: master
   ci:
     - drone.nextcloud.com
-  require_ci_to_pass: false
 
 coverage:
   precision: 2