[release] 1.62.4 - Concurrency improvements (#504)

### Fixes
- Fix concurrency issues with EventLogger, and StorageService





>Included In This Release
>- 088d172 Andre Terron
>   - Add memory cache to UserPayloadStore (#500)
>- 69ed5e9 hoa-statsig
>   - Track dropped log request telemetry (#488)
>- e086c62 Andre Terron
>   - Add lock protection to EventLogger and MarkerBase (#498)

Author: andre-statsig

Sources/Statsig/DeviceEnvironment.swift

@@ -5,7 +5,7 @@ struct DeviceEnvironment {
 
     static internal let deviceOS = PlatformCompatibility.deviceInfo.os
     static internal let sdkType: String = "ios-client"
-    static internal let sdkVersion: String = "1.62.3"
+    static internal let sdkVersion: String = "1.62.4"
 
     let lock = NSLock()
     var sessionID: String? { UUID().uuidString }

Statsig.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |spec|
 
   spec.name         = "Statsig"
-  spec.version      = "1.62.3"
+  spec.version      = "1.62.4"
   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: