Fix broken coveralls (pytorch#713)

Summary: Pull Request resolved: pytorch#713

Differential Revision: D68002443

.github/workflows/ci_cpu.yml

@@ -59,6 +59,11 @@ jobs:
         with:
           name: unittest-py38-release-reports
           path: unittest-py38-release-reports
+      - name: Send coverage to Coveralls (parallel)
+        uses: coverallsapp/github-action@v2
+        with:
+          parallel: true
+          flag-name: run-1
 
   unittest_py39_torch_release:
     runs-on: ubuntu-latest
@@ -84,6 +89,11 @@ jobs:
         with:
           name: unittest-py39-release-reports
           path: unittest-py39-release-reports
+      - name: Send coverage to Coveralls (parallel)
+        uses: coverallsapp/github-action@v2
+        with:
+          parallel: true
+          flag-name: run-2
 
   prv_accountant_values:
     runs-on: ubuntu-latest
@@ -155,6 +165,11 @@ jobs:
         with:
           name: mnist-cpu-reports
           path: runs/mnist/test-reports
+      - name: Send coverage to Coveralls (parallel)
+        uses: coverallsapp/github-action@v2
+        with:
+          parallel: true
+          flag-name: run-3
 
   ######## FINISH COVERALLS ##########
   finish_coveralls_parallel:
@@ -168,3 +183,4 @@ jobs:
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           parallel-finished: true
+          carryforward: "run-1,run-2,run-3"