Include ascopes/java-compiler-testing in tools list

[ascopes]

I have just released v1.0.0 of https://github.com/ascopes/java-compiler-testing.

I was wondering if it would be possible to include it in this list (part of #24).

Hopefully this will be useful to annotation processor developers, as it aims to address some of the issues and limitations with other testing libraries that exist already.

Features to note that may make this useful to include on the list:

• Support for Java 11 through Java 21 EA
• Provides Junit5 integration
• Provides AssertJ-assertions
• Can detect the testing classpath and module path automatically.
• Fluent API
• Uses in-memory RAM disks, but can also support using real file system paths. Aims to keep tests fast, immutable, and reproducible.
• All builds I make have steps that validate that they are compatible with existing AP libraries, including avaje, ErrorProne, Lombok, Spring and Spring Boot APs, Micronaut, and some of the Google AP libraries.