Upgrade System.Security.Cryptography.Xml to 10.0.6

Fix CVE-2026-26171 (GHSA-w3x6-4m5h-cxqf) high severity vulnerability

Author: maliming

Directory.Packages.props

@@ -174,7 +174,7 @@
     <PackageVersion Include="System.Linq.Dynamic.Core" Version="1.6.7" />
     <PackageVersion Include="System.Linq.Queryable" Version="4.3.0" />
     <PackageVersion Include="System.Runtime.Loader" Version="4.3.0" />
-    <PackageVersion Include="System.Security.Cryptography.Xml" Version="10.0.2" />
+    <PackageVersion Include="System.Security.Cryptography.Xml" Version="10.0.6" />
     <PackageVersion Include="System.Security.Permissions" Version="10.0.2" />
     <PackageVersion Include="System.Security.Principal.Windows" Version="5.0.0" />
     <PackageVersion Include="System.Text.Encoding.CodePages" Version="10.0.2" />