Update Directory.Packages.props

Author: SimonCropp

src/Directory.Packages.props

@@ -15,7 +15,7 @@
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.0-beta.8" />
     <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.11.0" />
-    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" Update="false" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="10.0.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageVersion Include="NUnit" Version="4.4.0" />
@@ -29,7 +29,7 @@
     <PackageVersion Include="System.Drawing.Common" Version="10.0.0" />
     <PackageVersion Include="System.Memory" Version="4.6.3" />
     <!-- keep at 4.5.0 -->
-    <PackageVersion Include="System.ValueTuple" Version="4.5.0" />
+    <PackageVersion Include="System.ValueTuple" Version="4.5.0" Update="false" />
     <PackageVersion Include="TextCopy" Version="6.2.1" />
     <PackageVersion Include="TUnit" Version="1.2.11" />
     <PackageVersion Include="TUnit.Core" Version="1.2.11" />