Release Google.Cloud.OrgPolicy.V2 version 2.8.0 (#14649)

Changes in this release:

### New features

- Add managed constraints new fields (e.g. parameter) ([commit 9030f87](https://togithub.com/googleapis/google-cloud-dotnet/commit/9030f87e6b6cebd588b23b86ba9e24eb1ae11141))

### Documentation improvements

- Updated comments ([commit 9030f87](https://togithub.com/googleapis/google-cloud-dotnet/commit/9030f87e6b6cebd588b23b86ba9e24eb1ae11141))

Author: jskeet

apis/Google.Cloud.OrgPolicy.V2/Google.Cloud.OrgPolicy.V2/Google.Cloud.OrgPolicy.V2.csproj

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>2.7.0</Version>
+    <Version>2.8.0</Version>
     <TargetFrameworks>netstandard2.0;net462</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>Recommended Google client library to access the Organization Policy API (v2), which allows users to configure governance rules on their GCP resources across the Cloud Resource Hierarchy.</Description>

apis/Google.Cloud.OrgPolicy.V2/docs/history.md

@@ -1,5 +1,15 @@
 # Version history
 
+## Version 2.8.0, released 2025-04-23
+
+### New features
+
+- Add managed constraints new fields (e.g. parameter) ([commit 9030f87](https://github.com/googleapis/google-cloud-dotnet/commit/9030f87e6b6cebd588b23b86ba9e24eb1ae11141))
+
+### Documentation improvements
+
+- Updated comments ([commit 9030f87](https://github.com/googleapis/google-cloud-dotnet/commit/9030f87e6b6cebd588b23b86ba9e24eb1ae11141))
+
 ## Version 2.7.0, released 2024-09-26
 
 ### New features

generator-input/apis.json

@@ -3953,7 +3953,7 @@
     },
     {
       "id": "Google.Cloud.OrgPolicy.V2",
-      "version": "2.7.0",
+      "version": "2.8.0",
       "type": "grpc",
       "productName": "Organization Policy",
       "productUrl": "https://cloud.google.com/resource-manager/docs/organization-policy/overview",