ci: run codecov once

.github/workflows/main.yml

@@ -43,9 +43,10 @@ jobs:
       - run: DB=postgres npm run test
 
       - run: npm run test:cov
-      - run: bash <(curl -s https://codecov.io/bash)
+        if: github.event_name == 'push' && matrix.node-version == '20.x'
+      - run: 'bash <(curl -s https://codecov.io/bash)'
       - name: Semantic Release
-        if: github.event_name == 'push' && matrix.node-version == '18.x'
+        if: github.event_name == 'push' && matrix.node-version == '20.x'
         uses: cycjimmy/semantic-release-action@v3
         env:
           GH_TOKEN: ${{ secrets.GH_TOKEN }}