Add support for using version catalogs in tests

[shanman190]

What's changed?

Add support for writing out version catalogs, such that they can be used within unit tests.

What's your motivation?

Enable more snippets that are parseable in tests.

Anything in particular you'd like reviewers to focus on?

Nothing in particular

Anyone you would like to review specifically?

Anybody

Have you considered any alternatives or workarounds?

N/A

Any additional context

I noticed that version catalogs weren't yet supported in test cases as part of verifying the test snippets as part of openrewrite/rewrite#5574. Conventionally, I've limited version catalogs to the format included here of gradle/*.versions.toml, however version catalogs can technically carry any file name. This just seemed like a good middle ground though from a conventional standpoint.

See Version Catalogs for more information.

Checklist

• I've added unit tests to cover both positive and negative cases
• I've read and applied the recipe conventions and best practices
• I've used the IntelliJ IDEA auto-formatter on affected files

[shanman190]

The test failure here is due to not having rewrite-toml on the classpath yet. I've added it to rewrite-gradle as an implementation dependency via the associated PR which will then enable supporting future work against version catalogs within rewrite-gradle itself.

[timtebeek]

🚀