Migrate Lambda to use servlet core

[timyates]

• It updates to the latest milestones
• It deletes CDK module (it will be moved to starter).
• It moves away from AWS Serverless Java Container. It use servlet core.
• It supports both payload versions v1 and v2.
• Handlers use standard AWS Lambda Java Events POJOs.
• TCK passes almost complety.
• There is some work still to do in the the proxy-test. Several tests don't pass.

[timyates]

Flux test currently fails with Expected received body of '{"scanAvailable":true,"prefetch":-1}' to contain '[{"name":"Joe"},{"name":"Lewis"}]' so it's serializing the Flux, not the contents of the flux... I've seen this before, I wonder what I'm missing.

This also doesn't currently support binary payloads in the body, we will need to mime encode them

[graemerocher]

do you have the micronaut-reactor module on the classpath for the tests?

[timyates]

Added testImplementation(mnReactor.micronaut.reactor) to the tck build, but it didn't seem to make a difference 🤔

[driverpt]

Suggestion: Add Base class AWSLambdaHttpRequestFunction w/ method onShutdown()

[graemerocher]

looks good, just go through the code and annotate more types and packages with @Internal since I think we should keep the public API surface area here small

[sonarcloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
16 Code Smells

0.0% Coverage
8.7% Duplication