Update dependency org.openrewrite.recipe:rewrite-testing-frameworks to v2

Author: renovate[bot]

gradle/libs.versions.toml

@@ -5,7 +5,7 @@ logback = "1.4.7"
 arrow = "1.1.6-alpha.91"
 rewrite-kotlin = "0.4.1"
 rewrite = "7.40.8"
-rewrite-testing = "1.37.0"
+rewrite-testing = "2.0.0"
 openrewrite = "5.40.6"
 assertj = "3.24.2"
 kotlin = "1.8.21"