chore(deps): bump Grpc.Auth from 2.39.1 to 2.40.0

Bumps [Grpc.Auth](https://github.com/grpc/grpc) from 2.39.1 to 2.40.0.
- [Release notes](https://github.com/grpc/grpc/releases)
- [Changelog](https://github.com/grpc/grpc/blob/master/doc/grpc_release_schedule.md)
- [Commits](https://github.com/grpc/grpc/commits)

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

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

Client/Client.csproj

@@ -47,7 +47,7 @@ This release is based on the Zeebe 1.0.X release (https://github.com/zeebe-io/ze
   <ItemGroup>
     <PackageReference Include="Google.Protobuf" version="3.18.0" />
     <PackageReference Include="Grpc" version="2.39.1" />
-    <PackageReference Include="Grpc.Auth" Version="2.39.1" />
+    <PackageReference Include="Grpc.Auth" Version="2.40.0" />
     <PackageReference Include="Grpc.Core" version="2.40.0" />
     <PackageReference Include="Grpc.Tools" version="2.40.0">
       <PrivateAssets>all</PrivateAssets>