Update MSBuild packages to 18.0.2 (#231)

* Initial plan

* Update MSBuild packages from 17.14.x to 18.0.2

Co-authored-by: radical <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: radical <[email protected]>

Author: Copilot

src/SourceBrowser/src/Directory.Packages.props

@@ -7,10 +7,10 @@
 
   <ItemGroup>
     <!-- msbuild-->
-    <PackageVersion Include="Microsoft.Build.Framework" Version="17.14.28" />
-    <PackageVersion Include="Microsoft.Build.Tasks.Core" Version="17.14.8" />
-    <PackageVersion Include="Microsoft.Build.Utilities.Core" Version="17.14.8" />
-    <PackageVersion Include="Microsoft.Build" Version="17.14.8" />
+    <PackageVersion Include="Microsoft.Build.Framework" Version="18.0.2" />
+    <PackageVersion Include="Microsoft.Build.Tasks.Core" Version="18.0.2" />
+    <PackageVersion Include="Microsoft.Build.Utilities.Core" Version="18.0.2" />
+    <PackageVersion Include="Microsoft.Build" Version="18.0.2" />
 
     <!-- roslyn -->
     <PackageVersion Include="Microsoft.CodeAnalysis" Version="4.14.0" />