Changes

[maven-release-plugin] prepare release 3.1

[maven-release-plugin] prepare for next development iteration

distinguish resources paths in airlines app, by username and id

In the original version, the testing apps cannot deploy, as the
paths '/user/{username}' and '/user/{id}' are ambiguous.

TCK deps: MP Rest Client API to 3.0.1, JAXB to 3.0.1, BV to 3.0.2 (#560)

Signed-off-by: Michael Edgar <michael@xlate.io>

Add missing `yml` suffix to conditions for serving `/openapi` endpoint (#561)

Fixes #553

Signed-off-by: Michael Edgar <michael@xlate.io>

Use full spec name once for JAX-RS

The full spec name is Jakarta RESTful Web Services. We should use the
full name at least once and then abbreviate it to JAX-RS (which is the
name everyone knows).

Also remove a reference specifically to JAX-RS 2.0.

TCK: fix several incorrectly used annotations and associated tests (#562)

* TCK: fix several incorrectly used annotations and associated tests
* Align link parameter name with operation's path parameter name
* Remove `/findByStatus` endpoint

Signed-off-by: Michael Edgar <michael@xlate.io>
Co-authored-by: Andrew Rouse <anrouse@uk.ibm.com>