try publishing coverage report as an artifact.

Author: botandrose-machine

.github/workflows/ci.yml

@@ -46,6 +46,11 @@ jobs:
         run: npm install
       - name: Check code coverage
         run: npm run test:coverage
+      - name: Upload coverage report
+        uses: actions/upload-artifact@v2
+        with:
+          name: coverage-report
+          path: coverage/
 
   typecheck:
     runs-on: ubuntu-latest