Prepare for 2.2.0 release

Author: dilyand

CHANGELOG

@@ -1,3 +1,8 @@
+Release 2.2.0 (2021-03-08)
+--------------------------
+Add SQS collector module (#120)
+Serve robots.txt file (#109)
+
 Release 2.1.2 (2021-02-18)
 --------------------------
 Prevent network_userid being captured when SP-Anonymous header is set (#117)

build.sbt

@@ -45,7 +45,7 @@ lazy val commonDependencies = Seq(
 lazy val buildSettings = Seq(
   organization := "com.snowplowanalytics",
   name := "snowplow-stream-collector",
-  version := "2.1.2",
+  version := "2.2.0",
   description := "Scala Stream Collector for Snowplow raw events",
   scalaVersion := "2.12.10",
   javacOptions := Seq("-source", "11", "-target", "11"),