Bump SharpToken from 1.2.17 to 2.0.2 in /webapi

Bumps [SharpToken](https://github.com/dmitry-brazhenko/SharpToken) from 1.2.17 to 2.0.2.
- [Release notes](https://github.com/dmitry-brazhenko/SharpToken/releases)
- [Commits](dmitry-brazhenko/SharpToken@1.2.17...2.0.2)

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

Signed-off-by: dependabot[bot] <support@github.com>

webapi/CopilotChatWebApi.csproj

@@ -33,7 +33,7 @@
     <PackageReference Include="Microsoft.SemanticKernel.Plugins.MsGraph" Version="1.5.0-alpha" />
     <PackageReference Include="Microsoft.SemanticKernel.Plugins.OpenApi" Version="1.5.0-alpha" />
     <PackageReference Include="Microsoft.SemanticKernel.Plugins.Web" Version="1.5.0-alpha" />
-    <PackageReference Include="SharpToken" Version="1.2.17" />
+    <PackageReference Include="SharpToken" Version="2.0.2" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
   </ItemGroup>