Resolves the multiple emit from #280 (#286)

* Redid the integration tests using serverless-offline

* Split offline and AWS editions of the integration tests

* Run integration test in Github

* Integration needs "npm run"

* Re-enable node14.x tests

* Demo the pino case doing double logging

* Resolves the multiple emit from #280

Author: palfrey

.github/workflows/ci.yml

@@ -15,4 +15,5 @@ jobs:
       with:
         node-version: 18
     - run: npm ci
-    - run: npm test
+    - run: npm test
+    - run: npm run test:integration:offline

lib/response.js

@@ -127,10 +127,6 @@ module.exports = class ServerlessResponse extends http.ServerResponse {
         return true;
       },
     });
-
-    this.once('finish', () => {
-      this.emit('close')
-    });
   }
 
 };