Update code cov yml file

codecov.yml

@@ -1,15 +1,24 @@
 codecov:
- require_ci_to_pass: yes
- notify:
-   wait_for_ci: yes
+  require_ci_to_pass: yes
+  notify:
+    wait_for_ci: yes
+  max_report_age: false
+
 coverage:
- status:
-   project: # checks the effect for the overall code coverage rate of the repository.
-     default:
-       enabled: yes
-       threshold: null
-       target: auto
-   patch:  # This status indicates the extent of code coverage achieved by the pull request.
-     default:
-       target: 80%
-       threshold: 40% # With a target of 80% and a threshold of 40%, the acceptable coverage range is 40% to 80%.
+  status:
+    project: off
+    patch: off
+
+flag_management:
+  default_rules:
+    carryforward: true
+  individual_flags:
+    - name: unit
+      statuses:
+        - type: project
+          target: auto
+          threshold: null
+        - type: patch
+          target: 80%
+          threshold: 40%
+