Bump Microsoft.Identity.Web.UI and Microsoft.Identity.Web

Bumps [Microsoft.Identity.Web.UI](https://github.com/AzureAD/microsoft-identity-web) and [Microsoft.Identity.Web](https://github.com/AzureAD/microsoft-identity-web). These dependencies needed to be updated together.

Updates `Microsoft.Identity.Web.UI` from 2.19.1 to 2.20.0
- [Release notes](https://github.com/AzureAD/microsoft-identity-web/releases)
- [Changelog](https://github.com/AzureAD/microsoft-identity-web/blob/2.20.0/changelog.md)
- [Commits](https://github.com/AzureAD/microsoft-identity-web/commits/2.20.0)

Updates `Microsoft.Identity.Web` from 2.19.1 to 2.20.0
- [Release notes](https://github.com/AzureAD/microsoft-identity-web/releases)
- [Changelog](https://github.com/AzureAD/microsoft-identity-web/blob/2.20.0/changelog.md)
- [Commits](https://github.com/AzureAD/microsoft-identity-web/commits/2.20.0)

---
updated-dependencies:
- dependency-name: Microsoft.Identity.Web.UI
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: Microsoft.Identity.Web
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

GraphTutorial/GraphTutorial.csproj

@@ -13,9 +13,9 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Identity.Web" Version="2.19.1" />
+    <PackageReference Include="Microsoft.Identity.Web" Version="2.20.0" />
     <PackageReference Include="Microsoft.Identity.Web.GraphServiceClient" Version="2.20.0" />
-    <PackageReference Include="Microsoft.Identity.Web.UI" Version="2.19.1" />
+    <PackageReference Include="Microsoft.Identity.Web.UI" Version="2.20.0" />
     <PackageReference Include="Stylecop.Analyzers" Version="1.2.0-beta.556">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>