Update codecov upload using GH Actions (#692)

Author: jj22ee

.github/workflows/pr-build.yml

@@ -90,5 +90,12 @@ jobs:
           npx lerna run testcov
           npx lerna run reportcov
         env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
           CI: true
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        if: matrix.coverage
+        with:
+          directory: ./packages/core/
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./coverage.lcov
+          verbose: true

packages/core/package.json

@@ -42,7 +42,7 @@
     "test-async": "npm run compile && mocha --recursive ./dist/test_async/ -R spec",
     "clean": "rm -rf dist && rm -rf node_modules",
     "testcov": "nyc npm run test",
-    "reportcov": "nyc report --reporter=text-lcov > coverage.lcov && codecov"
+    "reportcov": "nyc report --reporter=text-lcov > coverage.lcov"
   },
   "keywords": [
     "amazon",