Generate property migrations for META-INF/spring-configuration-metadata.json too

[timtebeek]

What's changed?

• Generate property migrations for META-INF/spring-configuration-metadata.json files too, not just the additional configuration properties.
• Move the generated properties files to separate yaml files, to reduce duplication & incorrectly versioned properties, and make it easier to maintain going forward with a clear separation between what is generated and what is not.

What's your motivation?

We were missing out on generated replacements properties, based on DeprecatedConfigurationProperty annotated properties as per the Spring Boot docs on automatic metadata generation.

Any additional context

Before we only generated property migrations for three manually maintained additional configuration properties files:

• spring-boot-project/spring-boot/src/main/resources/META-INF/additional-spring-configuration-metadata.json
• spring-boot-project/spring-boot-actuator-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json
• spring-boot-project/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json

[timtebeek]

Now that we have neatly separated files we can also automate the changes going forward, similar to what we do for advisories: https://github.com/openrewrite/rewrite-java-dependencies/blob/main/.github/workflows/advisories.yml