Github actions codecov add ONNX flag (openvinotoolkit#2233)

### Changes

<!--- What was changed (briefly), how to reproduce (if applicable), what
the reviewers should focus on -->

### Reason for changes

<!--- Why should the change be applied -->

### Related tickets

117723

### Tests

<!--- How was the correctness of changes tested and whether new tests
were added -->

.github/workflows/post_pr_merge.yml

@@ -24,6 +24,7 @@ jobs:
       merge_commit_sha: ${{ github.event.pull_request.merge_commit_sha }}
       last_sha_in_pr: ${{ github.event.pull_request.head.sha }}
       coverage_artifact_name_in_pr: coverage_common
+      coverage_flags: COMMON
     secrets:
       CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
   upload-coverage-onnx:
@@ -33,5 +34,6 @@ jobs:
       merge_commit_sha: ${{ github.event.pull_request.merge_commit_sha }}
       last_sha_in_pr: ${{ github.event.pull_request.head.sha }}
       coverage_artifact_name_in_pr: coverage_onnx
+      coverage_flags: ONNX
     secrets:
       CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/precommit.yml

@@ -33,6 +33,7 @@ jobs:
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           name: coverage_common
+          flags: COMMON
   onnx:
     runs-on: ubuntu-20.04
     steps:
@@ -58,4 +59,5 @@ jobs:
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           name: coverage_onnx
+          flags: ONNX
 

.github/workflows/upload_coverage_for_develop.yml

@@ -12,6 +12,9 @@ on:
       coverage_artifact_name_in_pr:
         required: true
         type: string
+      coverage_flags: 
+        required: true
+        type: string     
     secrets:
       CODECOV_TOKEN:
         required: true
@@ -37,4 +40,4 @@ jobs:
 
           # github.event.pull_request.merge_commit_sha is the fresh commit in the develop,
           # provided that github.event.pull_request.merged == true
-          ./codecov -f ./coverage.xml -t ${{ secrets.CODECOV_TOKEN }}  -C ${{ inputs.merge_commit_sha }} -B develop -n "${{ inputs.coverage_artifact_name_in_pr }}"
+          ./codecov -f ./coverage.xml -t ${{ secrets.CODECOV_TOKEN }} -F ${{ inputs.coverage_flags }} -C ${{ inputs.merge_commit_sha }} -B develop -n "${{ inputs.coverage_artifact_name_in_pr }}"