Update wording of changelog for glue

Author: alextwoods

gems/aws-sdk-glue/CHANGELOG.md

@@ -4,7 +4,7 @@ Unreleased Changes
 1.135.0 (2023-05-08)
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-* Feature - Expand WorkerType enumeration.
+* Feature - Support large worker types G.4x and G.8x for Glue Spark.
 
 1.134.0 (2023-04-03)
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