chore(main): release LaunchDarkly.ClientSdk 5.5.4 (#166)

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


##
[5.5.4](LaunchDarkly.ClientSdk-v5.5.3...LaunchDarkly.ClientSdk-v5.5.4)
(2025-09-29)


### Bug Fixes

* Validate string format of SDK key
([#162](#162))
([27a26fb](27a26fb))

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

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Bumps client SDK to 5.5.4 and updates changelog with bug fix for SDK
key string format validation.
> 
> - **Client SDK (`pkgs/sdk/client`)**:
> - **Version bump**: Update `LaunchDarkly.ClientSdk.csproj` `<Version>`
from `5.5.3` to `5.5.4`.
> - **Changelog**: Add `5.5.4` entry noting bug fix to validate SDK key
string format.
> - **Release manifest**:
> - Update `.release-please-manifest.json` `pkgs/sdk/client` from
`5.5.3` to `5.5.4`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
f859104. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

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

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": "8.10.3",
-  "pkgs/sdk/client": "5.5.3",
+  "pkgs/sdk/client": "5.5.4",
   "pkgs/telemetry": "1.3.0",
   "pkgs/sdk/server-ai": "0.9.1",
   "pkgs/shared/common": "7.1.1",

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).
 
+## [5.5.4](https://github.com/launchdarkly/dotnet-core/compare/LaunchDarkly.ClientSdk-v5.5.3...LaunchDarkly.ClientSdk-v5.5.4) (2025-09-29)
+
+
+### Bug Fixes
+
+* Validate string format of SDK key ([#162](https://github.com/launchdarkly/dotnet-core/issues/162)) ([27a26fb](https://github.com/launchdarkly/dotnet-core/commit/27a26fb9e226f7e5208928d9df43fbd6d5a68037))
+
 ## [5.5.3](https://github.com/launchdarkly/dotnet-core/compare/LaunchDarkly.ClientSdk-v5.5.2...LaunchDarkly.ClientSdk-v5.5.3) (2025-09-25)
 
 

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

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <!--x-release-please-start-version-->
-        <Version>5.5.3</Version>
+        <Version>5.5.4</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