Add .codecov.yml

Author: tomoyat1

.codecov.yml

@@ -0,0 +1,14 @@
+ignore:
+  - "cmd/proxy/main.go"
+coverage:
+  range: "70..90"
+  round: down
+  precision: 2
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 1%
+    patch:
+      default:
+target: 80%