GUACAMOLE-1859: Update to Apache Directory API v2.1.5.

doc/licenses/apache-commons-pool-2.12.0/NOTICE

@@ -0,0 +1,5 @@
+Apache Commons Pool
+Copyright 2001-2023 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (https://www.apache.org/).

doc/licenses/apache-commons-pool-2.12.0/README

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+Apache Commons Pool (http://commons.apache.org/proper/commons-pool/)
+--------------------------------------------------------------------
+
+    Version: 2.12.0
+    From: 'Apache Software Foundation' (https://www.apache.org/)
+    License(s):
+        Apache v2.0
+

doc/licenses/apache-commons-pool-2.12.0/dep-coordinates.txt

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+org.apache.commons:commons-pool2:jar:2.12.0