Bump repo version to 0.2.2

Author: dnestoro

build.gradle

@@ -22,7 +22,7 @@ import static org.graalvm.internal.tck.TestUtils.metadataRoot
 import static org.graalvm.internal.tck.TestUtils.repoRoot
 import static org.graalvm.internal.tck.TestUtils.testRoot
 
-project.version("0.2.2-SNAPSHOT")
+project.version("0.2.2")
 
 // gradle check
 spotless {