Adjust codecov.yml (openvinotoolkit#2067)

### Changes
Makes Codecov wait for 2 reports being uploaded before printing a
comment, since we have both onnx and common precommits submitting
coverage reports now via GH action runs.

### Reason for changes
Currently the common precommit finishes much faster than the ONNX, and
Codecov posts coverage based off that run before waiting for the ONNX
precommit to finish, which is necessarily lower and confusing.

### Related tickets
N/A

### Tests
N/A

codecov.yml

@@ -3,10 +3,10 @@ ignore:
  - "tests"
  - "tools"
 
-#codecov:
-# notify:
-# after_n_builds: 4
-# wait_for_ci: yes
+codecov:
+ notify:
+ after_n_builds: 2
+ wait_for_ci: no
 
 coverage:
  status:
@@ -25,7 +25,8 @@ coverage:
  informational: true
  only_pulls: true
  paths:
- - "nncf/onnx" # extend this once we collect coverage reports for more than just onnx part of precommit
+ - "nncf/onnx"
+ - "nncf/common" # extend this once we collect coverage reports for more than just onnx and common part of precommit
 
 comment:
  layout: "diff, flags, files"