chore(main): release LaunchDarkly.ClientSdk 5.5.3 (#161)

🤖 I have created a release *beep* *boop*
---


##
[5.5.3](LaunchDarkly.ClientSdk-v5.5.2...LaunchDarkly.ClientSdk-v5.5.3)
(2025-09-25)


### Bug Fixes

* Update EventSource to 5.2.1
([#159](#159))
([35d08d7](35d08d7))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Jason Bailey <[email protected]>

Author: github-actions[bot]

.release-please-manifest.json

@@ -3,7 +3,7 @@
   "pkgs/dotnet-server-sdk-dynamodb": "4.0.0",
   "pkgs/dotnet-server-sdk-redis": "5.1.0",
   "pkgs/sdk/server": "8.10.2",
-  "pkgs/sdk/client": "5.5.2",
+  "pkgs/sdk/client": "5.5.3",
   "pkgs/telemetry": "1.3.0",
   "pkgs/sdk/server-ai": "0.9.1",
   "pkgs/shared/common": "7.1.0",

pkgs/sdk/client/CHANGELOG.md

@@ -3,6 +3,13 @@
 All notable changes to the LaunchDarkly Client-Side SDK for .NET will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org).
 
+## [5.5.3](https://github.com/launchdarkly/dotnet-core/compare/LaunchDarkly.ClientSdk-v5.5.2...LaunchDarkly.ClientSdk-v5.5.3) (2025-09-25)
+
+
+### Bug Fixes
+
+* Update EventSource to 5.2.1 ([#159](https://github.com/launchdarkly/dotnet-core/issues/159)) ([35d08d7](https://github.com/launchdarkly/dotnet-core/commit/35d08d7160512850c6d3a81e4fc312696cbb808e))
+
 ## [5.5.2](https://github.com/launchdarkly/dotnet-core/compare/LaunchDarkly.ClientSdk-v5.5.1...LaunchDarkly.ClientSdk-v5.5.2) (2025-08-26)
 
 

pkgs/sdk/client/src/LaunchDarkly.ClientSdk.csproj

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <!--x-release-please-start-version-->
-        <Version>5.5.2</Version>
+        <Version>5.5.3</Version>
         <!--x-release-please-end-->
         <!-- The BUILDFRAMEWORKS variable allows us to override the target frameworks in
              a situation where we need to build only the .NET Standard target and do not