chore: upgrade Smithy to 1.50.0

Author: ianbotsf

.changes/56c3bdfe-3416-46c4-a9e4-7d87918ee94b.json

@@ -0,0 +1,5 @@
+{
+    "id": "56c3bdfe-3416-46c4-a9e4-7d87918ee94b",
+    "type": "misc",
+    "description": "Upgrade Smithy to version **1.50.0**"
+}

gradle/libs.versions.toml

@@ -15,7 +15,7 @@ slf4j-v1x-version = "1.7.36"
 crt-kotlin-version = "0.8.6"
 
 # codegen
-smithy-version = "1.49.0"
+smithy-version = "1.50.0"
 smithy-gradle-version = "0.9.0"
 
 # testing