[Enhancement]: Allow @Container to be used as a meta-annotation

[philwebb]

Module

Core

Proposal

Currently the @Container annotation in org.testcontainers.junit.jupiter has @Target(ElementType.FIELD) which prevents it being used as a meta-annotation. If ANNOTATION_TYPE were also added it could be possible to create composable annotations.

The TestcontainersExtension class uses AnnotationSupport.isAnnotated(field, Container.class) which already checks for meta-presence of annotations.

[philwebb]

Thanks @eddumelendez!

[eddumelendez]

@philwebb this was released as part of 1.18.1