Squashed 'apollo-ios-codegen/' changes from 3d1a3954..54a51f43

54a51f43 Release 1.15.3 (#535)

git-subtree-dir: apollo-ios-codegen
git-subtree-split: 54a51f43ba2dde6edc2fd11834cf894a2193f281

Sources/CodegenCLI/Constants.swift

@@ -1,6 +1,6 @@
 import Foundation
 
 public enum Constants {
-  public static let CLIVersion: String = "1.15.2"
+  public static let CLIVersion: String = "1.15.3"
   static let defaultFilePath: String = "./apollo-codegen-config.json"
 }