RFC: Replace jackson databind with jackson-jr

[jeromevdl]

Is your feature request related to a problem? Please describe.
Reduce the size of the final package size.

Describe the solution you'd like
Use jackon-jr instead of jackson databind if possible.
In particular, make sure the other dependencies we have (thinking about jmespath for example) don't pull jackson-databind. Otherwise we'll have a bigger jar in the end (databind + jackson-jr)

Describe alternatives you've considered
N/A

[jeromevdl]

See #761 and go further...

[jeromevdl]

I've implemented a jackson-jr version of jmespath, available in v0.6.0

[jeromevdl]

Second time I go through this one and break my teeth on it. Too many dependencies are leveraging jackson databind:

• json-schema-validator (in validation module)
• X-Ray (and more broadly the aws-sdk-core used in tracing, parameters, idempotency, ...)
• payloadoffloading (for the large message module)
• embedded-metrics (in metrics module)
• jmespath (this one I managed to get a jackson-jr version, see above)

Almost every module has it as a dependency in a way... Closing as can't resolve