Bump TimeZoneConverter from 6.1.0 to 7.0.0 in /GraphSample

Bumps [TimeZoneConverter](https://github.com/mattjohnsonpint/TimeZoneConverter) from 6.1.0 to 7.0.0.
- [Release notes](https://github.com/mattjohnsonpint/TimeZoneConverter/releases)
- [Commits](mattjohnsonpint/TimeZoneConverter@6.1.0...7.0.0)

---
updated-dependencies:
- dependency-name: TimeZoneConverter
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

GraphSample/GraphSample.csproj

@@ -11,7 +11,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="8.0.10" PrivateAssets="all" />
     <PackageReference Include="Microsoft.Authentication.WebAssembly.Msal" Version="8.0.12" />
     <PackageReference Include="Microsoft.Graph" Version="5.69.0" />
-    <PackageReference Include="TimeZoneConverter" Version="6.1.0" />
+    <PackageReference Include="TimeZoneConverter" Version="7.0.0" />
   </ItemGroup>
 
 </Project>