Bump amqp-client from 5.9.0 to 5.12.0 in /core

Bumps [amqp-client](https://github.com/rabbitmq/rabbitmq-java-client) from 5.9.0 to 5.12.0.
- [Release notes](https://github.com/rabbitmq/rabbitmq-java-client/releases)
- [Commits](rabbitmq/rabbitmq-java-client@v5.9.0...v5.12.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

core/build.gradle

@@ -190,7 +190,7 @@ dependencies {
 
     testImplementation 'org.apache.httpcomponents:httpclient:4.5.9'
     testImplementation 'redis.clients:jedis:3.6.0'
-    testImplementation 'com.rabbitmq:amqp-client:5.9.0'
+    testImplementation 'com.rabbitmq:amqp-client:5.12.0'
     testImplementation 'org.mongodb:mongo-java-driver:3.12.7'
 
     testImplementation ('org.mockito:mockito-core:3.10.0') {