[#1909] Enable opened/closed connections logging

 For testing

Author: DavideD

hibernate-reactive-core/src/test/resources/log4j2.properties

@@ -4,11 +4,15 @@ rootLogger.appenderRef.console.ref = console
 
 # Print the selected dialect information
 logger.hibernate-dialect.name = org.hibernate.orm.dialect
-logger.hibernate-dialect.level = debug
+logger.hibernate-dialect.level = info
 
 # SQL logging disabled by default to speed test suite execution
 logger.hibernate.name = org.hibernate.SQL
-logger.hibernate.level = info
+logger.hibernate.level = debug
+
+# We want to log when a connection is opened/closed
+logger.sql-connection.name = org.hibernate.reactive.pool.impl
+logger.sql-connection.level = trace
 
 # Setting level to TRACE will show parameters values
 logger.sql-parameters-values.name = org.hibernate.type