Disable codecov annotations (#409)

* Add codecov config and disable gh annotations

* Allow some deviation in test coverage

.codecov.yml

@@ -0,0 +1,19 @@
+github_checks:
+  annotations: false
+
+# configuration related to pull request comments
+comment: yes
+
+coverage:
+  range: 40..90 # coverage lower than 40 is red, higher than 90 green, between color code
+
+  status:
+    project: # settings affecting project coverage
+      default:
+        target: auto # auto % coverage target
+        threshold: 5%  # allow for 5% reduction of coverage without failing
+
+    # do not run coverage on patch nor changes
+    patch: false
+
+

.github/workflows/codecov.yml

@@ -39,6 +39,3 @@ jobs:
         with:
           directory: /tmp/cov/
           name: nomos-node-codecov
-          fail_ci_if_error: true
-
-