Use ICU4J from Maven central (#13252)

Change-Id: Id3837571a0fac020819c83e2bae17eda8ca51267

client-compiler/ivy.xml

@@ -74,6 +74,9 @@
         <dependency org="xml-apis" name="xml-apis" rev="1.4.01"
             conf="build,ide -> default" />
 
+        <dependency org="com.ibm.icu" name="icu4j" rev="50.1.1"
+            conf="build,ide -> default" />
+            
         <dependency org="com.vaadin" name="vaadin-client-compiler-deps"
             rev="1.0.2" conf="build,ide -> default" />