Prepare for 2.2.1 release

Author: istreeter

CHANGELOG

@@ -1,3 +1,10 @@
+Version 2.2.1 (2023-01-24)
+--------------------------
+Update links in Readme (#205)
+Rename license file for GitHub (#204)
+Update copyright notice to 2023 (#225)
+Build and publish for Scala3 (#224)
+
 Version 2.2.0 (2022-11-21)
 --------------------------
 Add invalidation for the schema-list cache (#215)

README.md

@@ -11,12 +11,12 @@ Iglu Scala Client is used extensively in **[Snowplow][snowplow-repo]** to valida
 
 ## Installation
 
-The latest version of Iglu Scala Client is 2.2.0, which works with Scala 2.12, 2.13, and 3.
+The latest version of Iglu Scala Client is 2.2.1, which works with Scala 2.12, 2.13, and 3.
 
 If you're using SBT, add the following lines to your build file:
 
 ```scala
-val igluClient = "com.snowplowanalytics" %% "iglu-scala-client" % "2.2.0"
+val igluClient = "com.snowplowanalytics" %% "iglu-scala-client" % "2.2.1"
 ```
 
 ## API