move codecov upload to github workflow

.github/workflows/go.yml

@@ -35,3 +35,11 @@ jobs:
 
       - name: Run Make test
         run: make test
+
+      - name: Upload coverage report
+        uses: codecov/codecov-action@v1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          file: ./coverage.txt
+          flags: unittests
+          name: codecov-umbrella

hack/unit_test.sh

@@ -10,6 +10,3 @@ for d in $(go list ./pkg/... ./cmd/...); do
     rm profile.out
   fi
 done
-
-bash <(curl -s https://codecov.io/bash) -t $CODECOV_TOKEN
-