[FSSDK-11111] chore: prepare release 5.1.0 (#574)

* prepare release 5.0.1

Author: muzahidul-opti

.github/workflows/swift.yml

@@ -17,7 +17,7 @@ on:
         description: release
 
 env:
-  VERSION: 5.0.0
+  VERSION: 5.1.0
 
 jobs:
 

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Optimizely Swift SDK Changelog
 
+## 5.1.0
+February 4th, 2025
+
+### Functionality Enhancement
+* Add support for nested event tags ([#570](https://github.com/optimizely/swift-sdk/pull/570)).
+
 ## 5.0.0
 November 25th, 2024
 

README.md

@@ -39,7 +39,7 @@ If you have a name conflict with other swift packages when you add the Optimizel
 #### CocoaPods 
 1. Add the following lines to the _Podfile_:<pre>
 ```use_frameworks!```
-```pod 'OptimizelySwiftSDK', '~> 5.0.0'```
+```pod 'OptimizelySwiftSDK', '~> 5.1.0'```
 </pre>
 
 2. Run the following command: <pre>``` pod install ```</pre>