build(deps): bump MongoDB.Driver from 2.27.0 to 2.28.0 (#448)

Bumps [MongoDB.Driver](https://github.com/mongodb/mongo-csharp-driver) from 2.27.0 to 2.28.0.
- [Release notes](https://github.com/mongodb/mongo-csharp-driver/releases)
- [Commits](mongodb/mongo-csharp-driver@v2.27.0...v2.28.0)

---
updated-dependencies:
- dependency-name: MongoDB.Driver
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

DotnetPlayground.Web/DotnetPlayground.Web.csproj

@@ -51,7 +51,7 @@
  <PackageReference Include="IdentityManager2.AspNetIdentity" Version="1.0.0" />
  <PackageReference Include="Lib.AspNetCore.ServerTiming" Version="6.0.0" />
  <!--<PackageReference Include="Microsoft.Azure.DocumentDB.Core" Version="2.16.2" Condition="$(DefineConstants.Contains('INCLUDE_COSMOSDB'))" />-->
- <PackageReference Include="MongoDB.Driver" Version="2.27.0" Condition="$(DefineConstants.Contains('INCLUDE_MONGODB'))" />
+ <PackageReference Include="MongoDB.Driver" Version="2.28.0" Condition="$(DefineConstants.Contains('INCLUDE_MONGODB'))" />
  <PackageReference Include="Google.Apis.YouTube.v3" Version="1.68.0.3421" />
  <PackageReference Include="Microsoft.AspNetCore.Authentication.Facebook" Version="8.0.7" />
  <PackageReference Include="Microsoft.AspNetCore.Authentication.Google" Version="8.0.7" />