Verifies five claims against primary sources rather than release-note prose: the
org.testcontainers:junit-jupiter -> testcontainers-junit-jupiter rename (and the other 60 like
it, per OpenRewrite's own Testcontainers2Migration recipe), that GenericContainer no longer
implements org.junit.rules.TestRule anywhere in the 2.0.5 jar (confirmed exhaustively, not just
for this one class), the real compiler/dependency-resolution breaks from bumping only a version
number on existing JUnit 4 @ClassRule code, the literal 1.32 -> 1.44 default Docker API version
bump in DockerClientProviderStrategy's bytecode (tied to the real Docker Engine 29 compatibility
issue), and Spring Boot 4.1.1's BOM pinning 2.0.5. Built and tested with no Docker daemon
available; one test class demonstrates a clean @EnabledIfDockerAvailable skip, guarded at the
class level after the method-level guard was caught failing first.