Release Google.Cloud.Dialogflow.V2 version 4.23.0 (#13839)

Changes in this release:

### New features

- Add options of query_source, search_config, end_user_metadata and exact_search ([commit a08e4da](https://togithub.com/googleapis/google-cloud-dotnet/commit/a08e4da2ff37af2a1097ff51e91c694f4b445515))
- Expose metadata in AnswerSource ([commit a08e4da](https://togithub.com/googleapis/google-cloud-dotnet/commit/a08e4da2ff37af2a1097ff51e91c694f4b445515))
- Added support for ALAW encoding ([commit b206f21](https://togithub.com/googleapis/google-cloud-dotnet/commit/b206f2191e4dcf31df81e2d540ab4ed3bc5c8fb7))
- Add options of query_source, search_config and context_size ([commit b206f21](https://togithub.com/googleapis/google-cloud-dotnet/commit/b206f2191e4dcf31df81e2d540ab4ed3bc5c8fb7))

Author: jskeet

apis/Google.Cloud.Dialogflow.V2/Google.Cloud.Dialogflow.V2/Google.Cloud.Dialogflow.V2.csproj

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>4.22.0</Version>
+    <Version>4.23.0</Version>
     <TargetFrameworks>netstandard2.0;net462</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>Recommended Google client library to access the Google Dialogflow API (v2).</Description>

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

@@ -1,5 +1,14 @@
 # Version history
 
+## Version 4.23.0, released 2024-11-18
+
+### New features
+
+- Add options of query_source, search_config, end_user_metadata and exact_search ([commit a08e4da](https://github.com/googleapis/google-cloud-dotnet/commit/a08e4da2ff37af2a1097ff51e91c694f4b445515))
+- Expose metadata in AnswerSource ([commit a08e4da](https://github.com/googleapis/google-cloud-dotnet/commit/a08e4da2ff37af2a1097ff51e91c694f4b445515))
+- Added support for ALAW encoding ([commit b206f21](https://github.com/googleapis/google-cloud-dotnet/commit/b206f2191e4dcf31df81e2d540ab4ed3bc5c8fb7))
+- Add options of query_source, search_config and context_size ([commit b206f21](https://github.com/googleapis/google-cloud-dotnet/commit/b206f2191e4dcf31df81e2d540ab4ed3bc5c8fb7))
+
 ## Version 4.22.0, released 2024-09-26
 
 ### New features

apis/apis.json

@@ -2104,7 +2104,7 @@
       "protoPath": "google/cloud/dialogflow/v2",
       "productName": "Google Cloud Dialogflow",
       "productUrl": "https://cloud.google.com/dialogflow-enterprise/",
-      "version": "4.22.0",
+      "version": "4.23.0",
       "type": "grpc",
       "description": "Recommended Google client library to access the Google Dialogflow API (v2).",
       "tags": [