Add test to assert CHANGELOG format (#1582)

Author: jderusse

CHANGELOG.md

@@ -106,14 +106,14 @@
 
 ## 0.3.0
 
-### Added
-
-- Added operation `UpdateTimeToLiveInput`
-
 ### Removed
 
 - Removes methods `getServiceCode`, `getSignatureVersion` and `getSignatureScopeName` from Client.
 
+### Added
+
+- Added operation `UpdateTimeToLiveInput`
+
 ### Fixed
 
 - Add return typehint for `listTables`, `query` and `scan`