* update dep for java jersey1, jersey2
* update sbt dependency for jersey2
* update dep for java okhttp-gson, resteasy, resttemplate
* update dep for java retrofit 1.x, 2.x
* update java petstore samples
* Disable Jackson FAIL_ON_INVALID_SUBTYPE in feign
With this change, Jackson does not fail even if it doesn't recognize a
discriminator type name. This is helpful when upgrading a microservice with
a new subtype while keeping compatibility with its old clients. The instance
is returned as null instead of throwing an exception deep in the feign
framework, allowing clients to gracefully degrade.
* Disable FAIL_ON_INVALID_SUBTYPE for all Jackson-based projects