Prepare for 2.2.1 release

Author: dilyand

Diff for: CHANGELOG

@@ -1,3 +1,8 @@
+Release 2.2.1 (2021-03-26)
+--------------------------
+Respect SQS batch request limit (#125)
+Set network_userid to empty UUID in anonymous mode to prevent collector_payload_format_violation (#126)
+
 Release 2.2.0 (2021-03-08)
 --------------------------
 Add SQS collector module (#120)

Diff for: build.sbt

@@ -45,7 +45,7 @@ lazy val commonDependencies = Seq(
 lazy val buildSettings = Seq(
   organization := "com.snowplowanalytics",
   name := "snowplow-stream-collector",
-  version := "2.2.0",
+  version := "2.2.1",
   description := "Scala Stream Collector for Snowplow raw events",
   scalaVersion := "2.12.10",
   javacOptions := Seq("-source", "11", "-target", "11"),