fix: Log responses as well as events for lambdas as is done for webhooks

[bflorian]

The enableEventLogging configuration flag logs lifecycle event requests as well a the responses in the http handler for web-hook apps, but logged only the requests for Lambdas. This change logs both for all handlers.

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [x] I have read the CONTRIBUTING document
• [x] My code follows the code style of this project (hint: install an xo editor plugin)
• [x] Any required documentation has been added
• [ ] I have added tests to cover my changes