Add ListEventSourceMappings, PutFunctionConcurrency to Lambda (#2053)

* Add ListEventSourceMappings, PutFunctionConcurrency to Lambda

* fix tests

* Add CHANGELOG entry

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Co-authored-by: Jérémy Derussé <jeremy@derusse.com>

Author: shadowhand

src/Generator/GeneratorHelper.php

@@ -54,10 +54,12 @@ public static function normalizeName(string $propertyName): string
             'STL' => 'Stl',
             'TTL' => 'Ttl',
             'URI' => 'Uri',
+            'UUID' => 'Uuid',
             'VPC' => 'Vpc',
             'YUV' => 'Yuv',
 
             'BS' => 'Bs',
+            'DB' => 'Db',
             'ID' => 'Id',
             'NS' => 'Ns',
             'SS' => 'Ss',