Re-add codecov support

.github/workflows/test.yaml

@@ -42,6 +42,10 @@ jobs:
         run: |
           git config --global url."https://${{ secrets.GHCR_TOKEN }}:[email protected]/${{ github.repository_owner }}".insteadOf "https://github.com/${{ github.repository_owner }}";
           make test CI_RUN=${CI}
+      - uses: codecov/codecov-action@v1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
+          files: coverage.out
 
   release:
     name: Create Release

Makefile

@@ -11,7 +11,7 @@ prepare:
 	gocritic check
 
 test: lint tidy
-	GOPRIVATE=$(SET_PRIVATE) go test -race $(ADDITIONAL_BUILD_FLAGS) -cover
+	GOPRIVATE=$(SET_PRIVATE) go test -race $(ADDITIONAL_BUILD_FLAGS) -cover -coverprofile=coverage.out
 
 lint:
 	go fmt