GUACAMOLE-1594: Update all Java and JavaScript dependencies to latest compatible.

NOTE: Several WebPack plugins could not be updated as all plugins within
WebPack's "webpack-contrib" have dropped support for WebPack v4
entirely, but Closure Compiler only supports WebPack v4.

doc/licenses/jackson-databind-2.13.4.2/README

@@ -0,0 +1,8 @@
+Jackson-databind (https://github.com/FasterXML/jackson-databind)
+----------------------------------------------
+
+    Version: 2.13.4.2
+    From: 'FasterXML, LLC' (https://github.com/FasterXML)
+    License(s):
+        Apache v2.0
+