OpenAPI 3.1 properties included when OpenAPI 3.0 output is configured

[Azquelt]

Describe the bug

When a property is used that was added in OpenAPI 3.1, it should not be included when an OpenAPI 3.0 document is created.

Steps to Reproduce

In the application, use an OpenAPI annotation only supported in OpenAPI 3.1:

@Info(summary = "foo")

In the server.xml, configure output in OpenAPI 3.0:

<mpOpenAPI openAPIVersion="3.0"/>

In http://localhost:9080/openapi, observe that the info.summary property is present, making the OpenAPI 3.0 document invalid.

Expected behavior

The info.summary property should not be included in the output.

Diagnostic information:

• OpenLiberty Version: 24.0.0.12
• Affected feature(s): mpOpenAPI-4.0

Additional context
Add any other context about the problem here.

Upstream issue: smallrye/smallrye-open-api#2105