Allows to convert Spatie enum names to snake upper case

[JoolsMcFly]

Hi.

This PR addresses issue rectorphp/rector#8364 and lets you convert Spatie enum names to upper snake case.

[JoolsMcFly]

Could you tell me what the best way to test the rule with toUpperSnakeCase configuration set to true would be pls?

If I understand correctly naming convention makes it so that we can have only one test class for SpatieEnumClassToEnumRector and that is SpatieEnumClassToEnumRectorTest.
And since tests have only one configuration file loaded via provideConfigFilePath I have to pick one value of toUpperSnakeCase to test.

Ideas?

Thanks!

[TomasVotruba]

Only "ready" PRs trigger the CI, not drafts. So I took the liberty and triggered CI so we have more feedback

[TomasVotruba]

Could you also rebase on the main? There are some conflicts now

[JoolsMcFly]

Alright, merge conflicts are fixed and I moved upper case names to a new test fixture.

Original tests are green so BC is ensured.
What is the preferred way of adding a test that sets toUpperSnakeCase to true?

ps:
When I run composer complete-check it reports cs errors on files I haven't touched. I ran checks on an up-to-date main branch and there are errors there too. Should they be fixed in a separate PR?

[TomasVotruba]

Looks good, thank you 👍