chore(deps): Update dependency Grpc.Net.Client to 2.70.0 (#63)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [Grpc.Net.Client](https://redirect.github.com/grpc/grpc-dotnet) |
`2.67.0` -> `2.70.0` |
[![age](https://developer.mend.io/api/mc/badges/age/nuget/Grpc.Net.Client/2.70.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/nuget/Grpc.Net.Client/2.70.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/nuget/Grpc.Net.Client/2.67.0/2.70.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/nuget/Grpc.Net.Client/2.67.0/2.70.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>grpc/grpc-dotnet (Grpc.Net.Client)</summary>

###
[`v2.70.0`](https://redirect.github.com/grpc/grpc-dotnet/releases/tag/v2.70.0)

#### What's Changed

- update ArgumentNullException.ThrowIfNull usage by
[@&#8203;WeihanLi](https://redirect.github.com/WeihanLi) in
[https://github.com/grpc/grpc-dotnet/pull/2563](https://redirect.github.com/grpc/grpc-dotnet/pull/2563)
- use nameof for CallerArgumentExpression by
[@&#8203;WeihanLi](https://redirect.github.com/WeihanLi) in
[https://github.com/grpc/grpc-dotnet/pull/2562](https://redirect.github.com/grpc/grpc-dotnet/pull/2562)
- Correctness: Make some private & internal classes sealed where
possible by [@&#8203;Henr1k80](https://redirect.github.com/Henr1k80) in
[https://github.com/grpc/grpc-dotnet/pull/2559](https://redirect.github.com/grpc/grpc-dotnet/pull/2559)
- Bump vue from 2.6.14 to 3.0.0 in /examples/Spar/Server/ClientApp by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/grpc/grpc-dotnet/pull/2565](https://redirect.github.com/grpc/grpc-dotnet/pull/2565)
- Bump cross-spawn from 7.0.3 to 7.0.6 in
/testassets/InteropTestsGrpcWebWebsite/Tests by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/grpc/grpc-dotnet/pull/2574](https://redirect.github.com/grpc/grpc-dotnet/pull/2574)
- \[vote]Added Active maintainers into MAINTAINERS.md. by
[@&#8203;subhraOffGit](https://redirect.github.com/subhraOffGit) in
[https://github.com/grpc/grpc-dotnet/pull/2449](https://redirect.github.com/grpc/grpc-dotnet/pull/2449)
- Refactor: Use `await using` for `packageVersionStream` to ensure
proper disposal of async resources by
[@&#8203;dexcompiler](https://redirect.github.com/dexcompiler) in
[https://github.com/grpc/grpc-dotnet/pull/2521](https://redirect.github.com/grpc/grpc-dotnet/pull/2521)
- Performance microoptimizations by
[@&#8203;Henr1k80](https://redirect.github.com/Henr1k80) in
[https://github.com/grpc/grpc-dotnet/pull/2558](https://redirect.github.com/grpc/grpc-dotnet/pull/2558)
- Complete health checks watch service on server shutting down by
[@&#8203;JamesNK](https://redirect.github.com/JamesNK) in
[https://github.com/grpc/grpc-dotnet/pull/2582](https://redirect.github.com/grpc/grpc-dotnet/pull/2582)
- Avoid using ConcurrentDictionary for channels with few methods by
[@&#8203;JamesNK](https://redirect.github.com/JamesNK) in
[https://github.com/grpc/grpc-dotnet/pull/2597](https://redirect.github.com/grpc/grpc-dotnet/pull/2597)
- Bump elliptic from 6.6.0 to 6.6.1 in /examples/Spar/Server/ClientApp
by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/grpc/grpc-dotnet/pull/2599](https://redirect.github.com/grpc/grpc-dotnet/pull/2599)
- Move updating connectivity state outside of subchannel lock by
[@&#8203;JamesNK](https://redirect.github.com/JamesNK) in
[https://github.com/grpc/grpc-dotnet/pull/2601](https://redirect.github.com/grpc/grpc-dotnet/pull/2601)
- Bump Grpc.Tools dependency by
[@&#8203;apolcyn](https://redirect.github.com/apolcyn) in
[https://github.com/grpc/grpc-dotnet/pull/2603](https://redirect.github.com/grpc/grpc-dotnet/pull/2603)
- bump version on v2.70.x branch by
[@&#8203;apolcyn](https://redirect.github.com/apolcyn) in
[https://github.com/grpc/grpc-dotnet/pull/2604](https://redirect.github.com/grpc/grpc-dotnet/pull/2604)
- Change version to 2.70.0 by
[@&#8203;JamesNK](https://redirect.github.com/JamesNK) in
[https://github.com/grpc/grpc-dotnet/pull/2610](https://redirect.github.com/grpc/grpc-dotnet/pull/2610)

#### New Contributors

- [@&#8203;Henr1k80](https://redirect.github.com/Henr1k80) made their
first contribution in
[https://github.com/grpc/grpc-dotnet/pull/2559](https://redirect.github.com/grpc/grpc-dotnet/pull/2559)
- [@&#8203;subhraOffGit](https://redirect.github.com/subhraOffGit) made
their first contribution in
[https://github.com/grpc/grpc-dotnet/pull/2449](https://redirect.github.com/grpc/grpc-dotnet/pull/2449)
- [@&#8203;dexcompiler](https://redirect.github.com/dexcompiler) made
their first contribution in
[https://github.com/grpc/grpc-dotnet/pull/2521](https://redirect.github.com/grpc/grpc-dotnet/pull/2521)

**Full Changelog**:
grpc/grpc-dotnet@v2.67.0...v2.70.0

</details>

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source/Dgraph/Dgraph.csproj

@@ -21,7 +21,7 @@
   <ItemGroup>
     <PackageReference Include="Google.Protobuf" Version="3.30.0" />
     <PackageReference Include="Grpc.Core" Version="2.46.6" />
-    <PackageReference Include="Grpc.Net.Client" Version="2.67.0" />
+    <PackageReference Include="Grpc.Net.Client" Version="2.70.0" />
     <PackageReference Include="Grpc.Tools" Version="2.70.0" PrivateAssets="All" />
     <PackageReference Include="FluentResults" Version="3.16.0" />
   </ItemGroup>