Update CHANGELOG to reflect new Label Studio version 1.17.0 (#64)

Author: benglewis

heartex/label-studio/CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## 1.9.9
+- Upgraded Label Studio application version to 1.17.0
+
 ## 1.9.8
 ### Fixes
 * Add data dir as volume mount to db-migration initContainer and extra initContainers.