Bump Grpc.Net.Client from 2.35.0 to 2.38.0 in /Gatekeeper.Server.Ldap

Bumps [Grpc.Net.Client](https://github.com/grpc/grpc-dotnet) from 2.35.0 to 2.38.0.
- [Release notes](https://github.com/grpc/grpc-dotnet/releases)
- [Changelog](https://github.com/grpc/grpc-dotnet/blob/master/doc/release_process.md)
- [Commits](grpc/grpc-dotnet@v2.35.0...v2.38.0)

---
updated-dependencies:
- dependency-name: Grpc.Net.Client
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gatekeeper.Shared.LdapAndWeb/Gatekeeper.Shared.LdapAndWeb.csproj

@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="Google.Protobuf" Version="3.15.3" />
-    <PackageReference Include="Grpc.Net.Client" Version="2.35.0" />
+    <PackageReference Include="Grpc.Net.Client" Version="2.38.0" />
     <PackageReference Include="Grpc.Tools" Version="2.36.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>