Readd an Ant example that uses Ivy and a scriptselector as replacement for the removed custom selector

[Vampire]

No description provided.

[leonard84]

Who still uses ANT in this day and age?

[Copilot]

Pull Request Overview

This PR reintroduces an Ant example that leverages Ivy and a scriptselector as a replacement for a removed custom selector.

• Adds a new GitHub Actions job named "check-ant" to run Ant tests.
• Configures Java 8 and caches Ivy dependencies for improved build consistency.

Files not reviewed (3)

• build.xml: Language not supported
• ivy.xml: Language not supported
• ivysettings.xml: Language not supported

Comments suppressed due to low confidence (1)

.github/workflows/main.yml:66

• [nitpick] The step name 'Check Spock' is misleading in the context of an Ant test run. Consider renaming it to 'Run Ant Test' to better reflect its functionality.

- name: 'Check Spock'

[Vampire]

Who still uses ANT in this day and age?

Me, why not?
Especially if you have an Ant build that works perfectly fine since decades and that you only need to run occasionally, there is not too much reason to migrate it to something different.

And in one of those I just wanted to add Spock and wished we'd have a proper Ant example in the example project.
Besides that the user manual still claims it does have an Ant example.

Why not readd an Ant example, it does not really cost anything and it is beneficial for those still wanting or needing it.
Especially with the scriptselector.

[leonard84]

Why not a single line

Suggested change

	import org.spockframework.buildsupport.SpecClassFileFinder
	self.selected = new SpecClassFileFinder().isRunnableSpec(file)
	self.selected = new org.spockframework.buildsupport.SpecClassFileFinder().isRunnableSpec(file)

[Vampire]

No specific reason, just two shorter lines instead of one long line.
If you want one long line instead, I'll change it.