Bump System.Text.Json from 8.0.5 to 9.0.0 in /tools in the dotnet group

Bumps the dotnet group in /tools with 1 update: [System.Text.Json](https://github.com/dotnet/runtime).


Updates `System.Text.Json` from 8.0.5 to 9.0.0
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.5...v9.0.0)

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dotnet
...

Signed-off-by: dependabot[bot] <[email protected]>

tools/Utilities/Utilities.csproj

@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Octokit" Version="13.0.1" />
-    <PackageReference Include="System.Text.Json" Version="8.0.5" />
+    <PackageReference Include="System.Text.Json" Version="9.0.0" />
   </ItemGroup>
 
 </Project>