update wording on spring boot otel agent combo

Author: adinauer

docs/platforms/java/migration/7.x-to-8.0.mdx

@@ -116,4 +116,4 @@ Sentry.init(options -> {
 });
 ```
 
-If you're using our Spring Boot integration, it will automatically take care of this for you and no further action is required.
+If you're using our Spring Boot integration, it will automatically detect our OpenTelemetry agent and take care of configuring the SDK for you.