ignores src/arbitrary.rs from codecov

.github/codecov.yml

@@ -1,21 +1,22 @@
 # ref: https://docs.codecov.com/docs/codecovyml-reference
 coverage:
-  # Hold ourselves to a high bar
-  range: 85..100
-  round: down
-  precision: 1
-  status:
-    # ref: https://docs.codecov.com/docs/commit-status
-    project:
-      default:
-        # Avoid false negatives
-        threshold: 1%
+    # Hold ourselves to a high bar
+    range: 85..100
+    round: down
+    precision: 1
+    status:
+        # ref: https://docs.codecov.com/docs/commit-status
+        project:
+            default:
+                # Avoid false negatives
+                threshold: 1%
 
 # Test files aren't important for coverage
 ignore:
-  - "tests"
+    - "tests"
+    - "src/arbitrary.rs"
 
 # Make comments less noisy
 comment:
-  layout: "files"
-  require_changes: true
+    layout: "files"
+    require_changes: true