Merge branch '3.1.x'

spring-boot-project/spring-boot-docs/src/docs/asciidoc/features/testcontainers.adoc

@@ -77,6 +77,7 @@ To do so, add the `@ImportTestcontainers` annotation to your test configuration
 include::code:MyContainersConfiguration[]
 
 TIP: If you don't intend to use the <<features#features.testing.testcontainers.service-connections, service connections feature>> but want to use <<features#features.testing.testcontainers.dynamic-properties, `@DynamicPropertySource`>> instead, remove the `@ServiceConnection` annotation from the `Container` fields.
+You can also add `@DynamicPropertySource` annotated methods to your declaration class.