[release] 1.53.5 - Rename repo and change rulePassed metadata (#394)

### Improvements
  - Changed the rulePassed event metadata from a boolean to a string
- Renamed the repo from `ios-sdk` to `statsig-kit`. [Learn
More](https://docs.statsig.com/client/iOS/repo-migration-guide)






>Included In This Release
>- c87af1d Andre Terron
>   - Add a callout on readme about the repo rename (#393)
>- 3233a95 sroyal-statsig
>   - Change Rule Passed to String (#392)

Author: andre-statsig

Sources/Statsig/DeviceEnvironment.swift

@@ -7,7 +7,7 @@ struct DeviceEnvironment {
 
     static internal let deviceOS = PlatformCompatibility.deviceInfo.os
     static internal let sdkType: String = "ios-client"
-    static internal let sdkVersion: String = "1.53.4"
+    static internal let sdkVersion: String = "1.53.5"
 
     let lock = NSLock()
     var sessionID: String? { UUID().uuidString }

Statsig.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |spec|
 
   spec.name         = "Statsig"
-  spec.version      = "1.53.4"
+  spec.version      = "1.53.5"
   spec.summary      = "Statsig enables developers to ship code faster and more safely."
   spec.description  = <<-DESC
                    Statsig enables developers to ship code faster and more safely by providing: