codecov.yml: fix threshold setting

csernazs · csernazs · commit 3ba524a58cdb · 2021-02-14T18:47:54.000+01:00
threshold should not be 'null', it must be a valid integer/float or percent
string.
diff --git a/codecov.yml b/codecov.yml
@@ -5,4 +5,4 @@ coverage:
         project:
             default:
                 target: 90%
-                threshold: null
+                threshold: 50%
