I tried to use test containers with hikari data-source-properties in Spring Boot like this:
```
spring:
datasource:
driver-class-name: org.testcontainers.jdbc.ContainerDatabaseDriver
…
We're getting an error when we have `cache_classes = true` on CI with Rails 7.0.1:
```
RuntimeError:
DescendantsTracker.clear was disabled because config.cache_classes = true
…