Node.js agent v5.9.0

New Features

• serverless_mode feature flag is now enabled by default.
• Added instrumentLoadedModule method to the API, allowing end-users to manually apply an instrumentation to a loaded module. Useful for cases where some module needs to be loaded before newrelic

Improvements

• Removed older versions of Cassandra from versioned tests
• For debug/test runs, shimmer will now cleanup the __NR_shim property on instrumented methods. This leftover property did not result in any negative behaviors but cleaning up for thoroughness and to prevent potential confusion.
• Fixes recordMiddleware promise parenting for certain cases where child segments are created within resolving middleware next() promises.