fix(agents): share runtimes across connection sessions

agents/drivers/informix/src/main/java/com/dbx/agent/informix/InformixAgent.java

@@ -8,7 +8,7 @@ import com.dbx.agent.ExecuteQueryOptions;
 import com.dbx.agent.ForeignKeyInfo;
 import com.dbx.agent.IndexInfo;
 import com.dbx.agent.JdbcExecutor;
-import com.dbx.agent.JsonRpcServer;
+import com.dbx.agent.MultiSessionJsonRpcServer;
 import com.dbx.agent.MetadataListConstraints;
 import com.dbx.agent.MetadataSqlSupport;
 import com.dbx.agent.ObjectInfo;
@@ -459,7 +459,7 @@ public final class InformixAgent extends BaseDatabaseAgent {
             case "ROLLBACK WORK" -> "ROLLBACK";
             default -> sql;
         };
-        return JdbcExecutor.INSTANCE.execute(
+        return JdbcExecutor.current().execute(
             requireConnected(),
             normalizedSql,
             schema,
@@ -551,6 +551,6 @@ public final class InformixAgent extends BaseDatabaseAgent {
     }
 
     public static void main(String[] args) {
-        new JsonRpcServer(new InformixAgent()).run();
+        new MultiSessionJsonRpcServer(InformixAgent::new).run();
     }
 }