Why is slf4j-api still at version 1.7

[daniel-vergien-bdr]

In testcontainers-java/core the slf4j-api is still on the 1.7.x version which is inactive . Is there a reason not to update to version 2? In the smoke tests testcontainers use version 2.
I think if one uses testcontainers in e.g. spring boot this is not an issue, since the slf4j version is than overridden by the framework. But if one uses testcontainers alone, one has to override the version by himself or stick to the old 1.7 version since else there is no logging from testontainers.