Run Wildfly IT with Java16

[abelsromero]

Thank you for opening a pull request and contributing to AsciidoctorJ!

Please take a bit of time giving some details about your pull request:

Kind of change

• Bug fix
• New non-breaking feature
• New breaking feature
• Documentation update
• Build improvement

Description

What is the goal of this pull request?
Run asciidoctorj-wildfly-integration-test with Java16

How does it achieve that?
The fix only requires upgrading dependencies to latests

    arquillianVersion = '1.6.0.Final'
    arquillianWildflyVersion = '3.0.1.Final'

And addind the repo https://maven.repository.redhat.com/ga/, without it, build fails unable to collect certan specific dependencies.

Are there any alternative ways to implement this?
Tried different version to see if the extra maven repo could be removed without much luck. A part form that, not much alternatives to test.

Are there any implications of this pull request? Anything a user must know?
No

Issue

If this PR fixes an open issue, please add a line of the form:

Fixes #1000

Release notes

Please add a corresponding entry to the file CHANGELOG.adoc

[robertpanzer]

Are these new files in the spring boot integration test necessary?
Or would it make sense to ignore them to .gitignore?

[abelsromero]

Are these new files in the spring boot integration test necessary?
Or would it make sense to ignore them to .gitignore?

Obviously not 🙄 fixed

[abelsromero]

All green and without the onlyIf, we are safe then.

[robertpanzer]

Awesome! Thank you!🍻🎉🚀