fix(codegen): 'toLowerCase(): String' is deprecated

Author: trivikr

codegen/sdk-codegen/build.gradle.kts

@@ -96,8 +96,8 @@ tasks.register("generate-smithy-build") {
 
             val sdkId = serviceTrait.sdkId
                     .replace(" ", "-")
-                    .toLowerCase();
-            val version = service.version.toLowerCase();
+                    .lowercase();
+            val version = service.version.lowercase();
 
             val clientName = sdkId.split("-").toTypedArray()
                     .map { it.capitalize() }
@@ -116,7 +116,7 @@ tasks.register("generate-smithy-build") {
                     .withMember("imports", Node.fromStrings("${models.getAbsolutePath()}${File.separator}${file.name}"))
                     .withMember("plugins", Node.objectNode()
                             .withMember("typescript-codegen", Node.objectNodeBuilder()
-                                    .withMember("package", "@aws-sdk/client-" + sdkId.toLowerCase())
+                                    .withMember("package", "@aws-sdk/client-" + sdkId.lowercase())
                                     // Note that this version is replaced by Lerna when publishing.
                                     .withMember("packageVersion", "3.0.0")
                                     .withMember("packageJson", manifestOverwrites)
@@ -128,7 +128,7 @@ tasks.register("generate-smithy-build") {
                                         useSchemaSerde.contains(serviceTrait.sdkId))
                                     .build()))
                     .build()
-            projectionsBuilder.withMember(sdkId + "." + version.toLowerCase(), projectionContents)
+            projectionsBuilder.withMember(sdkId + "." + version.lowercase(), projectionContents)
         }
 
         val buildFile = if (!(clientNameProp?.isEmpty() ?: true))