Bump Grpc.Tools from 2.65.0 to 2.66.0 (getgauge#227)

Bumps [Grpc.Tools](https://github.com/grpc/grpc) from 2.65.0 to 2.66.0.
- [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.Tools
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/Gauge.Dotnet.csproj

@@ -24,7 +24,7 @@
 
   <ItemGroup>
     <PackageReference Include="Gauge.CSharp.Lib" Version="0.10.3" />
-    <PackageReference Include="Grpc.Tools" Version="2.65.0">
+    <PackageReference Include="Grpc.Tools" Version="2.66.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>