bump version to v8.3.1

Author: bachue

src/Qiniu/Qiniu.csproj

@@ -28,7 +28,7 @@
     <PostBuildEvent>
     </PostBuildEvent>
     <ProjectId>Qiniu</ProjectId>
-    <Version>8.3.0</Version>
+    <Version>8.3.1</Version>
     <Authors>Rong Zhou, Qiniu SDK</Authors>
     <Company>Shanghai Qiniu Information Technology Co., Ltd.</Company>
     <Description>Qiniu Resource (Cloud) Storage SDK for C#</Description>

src/Qiniu/QiniuCSharpSDK.cs

@@ -2,7 +2,7 @@
 /// Qiniu (Cloud) C# SDK for .NET Framework 2.0+/Core/UWP
 /// Modules in this SDK:
 /// "Storage" 存储相关功能，上传，下载，数据处理，资源管理
-/// "CDN",    Fusion CDN, 融合CDN加速; 
+/// "CDN",    Fusion CDN, 融合CDN加速;
 /// "Util",   Utilities such as MD5 hashing, 实用工具(如MD5哈希计算等);
 /// "Http", HTTP Request Manager, HTTP请求管理器
 /// </summary>
@@ -37,6 +37,6 @@ public class QiniuCSharpSDK
     /// <summary>
     /// SDK版本号
     /// </summary>
-    public const string VERSION = "8.3.0";
+    public const string VERSION = "8.3.1";
 
 }