Merge pull request #38 from quickfix-j/copilot/update-installation-docs-hikaricp

docs: Replace Proxool with HikariCP in installation dependencies

Author: chrjohn

docs/installation.md

@@ -20,8 +20,7 @@ JVM compatible with Java 1.8 or higher (Java 11 or 21 LTS recommended for modern
 
 ### Optional run-time libraries:
 *   `log4j.jar`
-*   `proxool.jar` (Required for JDBC connection pooling)
-*   `jcl104-over-slf4j.jar` (Required for Proxool)
+*   `HikariCP.jar` (Required for JDBC connection pooling)
 *   `sleepycat-je.jar` (Needed if the SleepyCat JE message store is used)
 
 ## Building QuickFIX/J