adjusted to 23ai as requested (#405)

* Code sample - 23c JDBC Docker Windows

* additional adjustments

* fix indentation and close JDBC resources

* adjusted to 23ai as requested

---------

Co-authored-by: Gerald Venzl <gerald.venzl@oracle.com>

Author: juarezjuniorgithub

java/java-jdbc-db23cfree-dev/pom.xml renamed to java/java-jdbc-db23ai-free/pom.xml

@@ -10,7 +10,7 @@
   <version>1.0-SNAPSHOT</version>
 
   <name>java-jdbc-db23cfree-dev</name>
-  <description>Oracle Database 23c Free — Developer Release for Java Developers
+  <description>Oracle Database 23ai Free for Java Developers
     with Docker on Windows</description>
   <url>
     https://medium.com/oracledevs/oracle-database-23c-free-developer-release-for-java-developers-with-docker-on-windows-b164a7a61a91</url>