chore(deps): bump Grpc.Tools

Bumps the nuget group in /src/Agent/NewRelic/Agent/Core with 1 update: [Grpc.Tools](https://github.com/grpc/grpc).


Updates `Grpc.Tools` from 2.64.0 to 2.65.0
- [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
  dependency-group: nuget
...

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

src/Agent/NewRelic/Agent/Core/Core.csproj

@@ -39,7 +39,7 @@
   <ItemGroup>
     <PackageReference Include="Autofac" Version="4.5.0" />
     <PackageReference Include="Google.Protobuf" Version="3.27.2" />
-    <PackageReference Include="Grpc.Tools" Version="2.64.0">
+    <PackageReference Include="Grpc.Tools" Version="2.65.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>