Invoke Lambda Function - Synchronous execution failure is not failing vsts release step

**Describe the bug**
Given #137 and #147 causing a lambda execution failure (via cloudwatch logs only), VSTS release step is reporting successful completion of the lambda invocation.
**To reproduce**

1. Given a lambda to invoke, build release pipeline, etc.
2. Define a release step (any agent, linux, vs2017 etc)
3. Add step : AWS Invoke Lambda Function
4. Provide required info and select Synchronous under Invocation Type
5. Deploy release

**Expected behavior**
Invoke Lambda release step should fail if the lambda execution fails.

**Screenshots**

Configuration:
Cloudwatch logs showing lambda invoke failed (AWS level failure, not in my code)
ADO release step showing green/success invocation

**Your Environment**
- Azure Devops Cloud Based (dev.azure.com)
- AWS Invoke Lambda v 1.1.8 (latest from UI and seen in logs screenshot ^)