chore: update smithy version to 1.22.0 (#600)

## Motivation

#597 is failing due to unresolved shape `smithy.api#Unit` which was introduced in smithy-lang/smithy#980

## Changes

Updated smithyVersion to 1.22.0.

## Result

AWS SDK handles `smithy.api#Unit` for operation correctly.

codegen/smithy-aws-swift-codegen/src/main/kotlin/software/amazon/smithy/aws/swift/codegen/awsjson/AwsJson1_0_ProtocolGenerator.kt

@@ -14,15 +14,15 @@ import software.amazon.smithy.model.shapes.ShapeId
 import software.amazon.smithy.model.traits.TimestampFormatTrait
 import software.amazon.smithy.swift.codegen.integration.HttpBindingResolver
 import software.amazon.smithy.swift.codegen.integration.ProtocolGenerator
-import software.amazon.smithy.swift.codegen.integration.codingKeys.CodingKeysCustomizationJsonName
+import software.amazon.smithy.swift.codegen.integration.codingKeys.DefaultCodingKeysCustomizable
 import software.amazon.smithy.swift.codegen.integration.codingKeys.DefaultCodingKeysGenerator
 import software.amazon.smithy.swift.codegen.integration.httpResponse.HttpResponseGenerator
 import software.amazon.smithy.swift.codegen.integration.middlewares.ContentTypeMiddleware
 import software.amazon.smithy.swift.codegen.integration.middlewares.OperationInputBodyMiddleware
 import software.amazon.smithy.swift.codegen.middleware.MiddlewareStep
 
 open class AwsJson1_0_ProtocolGenerator : AWSHttpBindingProtocolGenerator() {
-    override val codingKeysGenerator = DefaultCodingKeysGenerator(CodingKeysCustomizationJsonName())
+    override val codingKeysGenerator = DefaultCodingKeysGenerator(DefaultCodingKeysCustomizable())
     override val defaultContentType = "application/x-amz-json-1.0"
     override val defaultTimestampFormat = TimestampFormatTrait.Format.EPOCH_SECONDS
     override val protocol: ShapeId = AwsJson1_0Trait.ID

codegen/smithy-aws-swift-codegen/src/main/kotlin/software/amazon/smithy/aws/swift/codegen/awsjson/AwsJson1_1_ProtocolGenerator.kt

@@ -14,15 +14,15 @@ import software.amazon.smithy.model.shapes.ShapeId
 import software.amazon.smithy.model.traits.TimestampFormatTrait
 import software.amazon.smithy.swift.codegen.integration.HttpBindingResolver
 import software.amazon.smithy.swift.codegen.integration.ProtocolGenerator
-import software.amazon.smithy.swift.codegen.integration.codingKeys.CodingKeysCustomizationJsonName
+import software.amazon.smithy.swift.codegen.integration.codingKeys.DefaultCodingKeysCustomizable
 import software.amazon.smithy.swift.codegen.integration.codingKeys.DefaultCodingKeysGenerator
 import software.amazon.smithy.swift.codegen.integration.httpResponse.HttpResponseGenerator
 import software.amazon.smithy.swift.codegen.integration.middlewares.ContentTypeMiddleware
 import software.amazon.smithy.swift.codegen.integration.middlewares.OperationInputBodyMiddleware
 import software.amazon.smithy.swift.codegen.middleware.MiddlewareStep
 
 class AwsJson1_1_ProtocolGenerator : AWSHttpBindingProtocolGenerator() {
-    override val codingKeysGenerator = DefaultCodingKeysGenerator(CodingKeysCustomizationJsonName())
+    override val codingKeysGenerator = DefaultCodingKeysGenerator(DefaultCodingKeysCustomizable())
     override val defaultContentType = "application/x-amz-json-1.1"
     override val defaultTimestampFormat = TimestampFormatTrait.Format.EPOCH_SECONDS
     override val protocol: ShapeId = AwsJson1_1Trait.ID

gradle.properties

@@ -1,8 +1,8 @@
 kotlin.code.style=official
 
 # codegen
-smithyVersion=1.13.1
-smithyGradleVersion=0.5.3
+smithyVersion=1.22.0
+smithyGradleVersion=0.6.0
 
 smithySwiftVersion = 0.1.0