Update to TZDB 2025b for release 3.2.2

Author: jskeet

Directory.Build.props

@@ -4,7 +4,7 @@
       - The most recently-released version. This is the last
       - thing to change before performing a release.
       -->
-    <Version>3.2.1</Version>
+    <Version>3.2.2</Version>
     <!--
       - The version we check for compatibility against. This is changed
       - immediately *after* a release.

src/NodaTime.Test/Xml/XmlSchemaTest.XmlSchema.approved.xml

@@ -263,6 +263,7 @@
       <xs:enumeration value="America/Coral_Harbour" />
       <xs:enumeration value="America/Cordoba" />
       <xs:enumeration value="America/Costa_Rica" />
+      <xs:enumeration value="America/Coyhaique" />
       <xs:enumeration value="America/Creston" />
       <xs:enumeration value="America/Cuiaba" />
       <xs:enumeration value="America/Curacao" />