Reduce number of logged warnings for type implementing `CloseableResource` but not `AutoCloseable`

[norrisjeremy]

Starting with the 5.13 release, JUnit now spams the following warning hundreds of times per build:

WARNING: Type implements CloseableResource but not AutoCloseable

We use the Testcontainers framework in JSch.

This can be seen in our Github Actions build logs, as seen here for example.

Steps to reproduce

Use Testcontainers extension and note how it spams the warning hundreds of times per build.

Context

• Used versions (Jupiter/Vintage/Platform): 5.13.3
• Build Tool/IDE: Maven

Deliverables

• Reduce logging to once per CloseableResource implementation class

[norrisjeremy]

I've also opened testcontainers/testcontainers-java#10525 as an enhancement request to update their JUnit extension to implement AutoCloseable as now recommended.