Update package versions and project version

- Bump `Microsoft.NET.Test.Sdk` to version `17.14.1`.
- Update project version from `3.26.1` to `3.26.2`.
- Upgrade `SixLabors.ImageSharp` to `3.1.9` and `SixLabors.ImageSharp.Drawing` to `2.1.6`.

Author: EdiWang

src/Edi.Captcha.Tests/Edi.Captcha.Tests.csproj

@@ -7,7 +7,7 @@
     <PackageReference Include="NUnit" Version="4.3.2" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="NUnit3TestAdapter" Version="5.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Edi.Captcha\Edi.Captcha.csproj" />

src/Edi.Captcha/Edi.Captcha.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
-        <Version>3.26.1</Version>
+        <Version>3.26.2</Version>
         <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
         <Company>edi.wang</Company>
         <Authors>Edi Wang</Authors>
@@ -16,8 +16,8 @@
     </PropertyGroup>
     <ItemGroup>
         <FrameworkReference Include="Microsoft.AspNetCore.App" />
-        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.7" />
-        <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="2.1.5" />
+        <PackageReference Include="SixLabors.ImageSharp" Version="3.1.9" />
+        <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="2.1.6" />
     </ItemGroup>
     <ItemGroup>
         <None Include="..\..\README.md" Pack="true" PackagePath="\" />