Fix codecov upload

Author: AchoArnold

.github/workflows/main.yml

@@ -42,5 +42,7 @@ jobs:
       - name: Run Tests
         run: go test -v -race -coverprofile=coverage.txt -covermode=atomic
 
-      - name: Upload coverage to Codecov
-        run: bash <(curl -s https://codecov.io/bash)
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}