* Add OpenRewrite recipe for JEP 512 instance main methods

Implements a migration recipe to convert `public static void main(String[] args)`
to instance `void main()` when the args parameter is unused, as introduced in
JEP 512 (Java 21+).

The recipe:
- Detects main methods with unused String[] args parameter
- Removes public and static modifiers
- Removes the unused parameter
- Preserves formatting and annotations
- Only applies to Java 21+ codebases

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* Apply formatter

* Inline named visitor

* Adopt `VariableReferences.findRhsReferences`

* Use ListUtils.filter instead of manual ArrayList construction

Refactored the modifier filtering logic to use OpenRewrite's ListUtils.filter
and ListUtils.mapFirst utilities for cleaner and more idiomatic code.

* Condense

* Suppress warnings for confusing main methods

* Further simplifications for String arrays

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Co-authored-by: Claude <noreply@anthropic.com>

… (#853)

* Generate Guava InlineMethodCalls recipes using openrewrite/rewrite#6059

* Add license header

* Regenerate file

* Read all resources now that Guava is split across two files

* Run CI on Java 25

* Consistently use Java 25 in CI workflows

* Fix failing `RemovalsServletJakarta10Test` tests

Now using type tables.

* Remove `logCompilationWarningsAndErrors()` call

* Fix another failing test

* Move test classpath jars to type table