Bump Grpc.Tools from 2.68.1 to 2.69.0

Bumps [Grpc.Tools](https://github.com/grpc/grpc) from 2.68.1 to 2.69.0.
- [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] <[email protected]>

test/Directory.Packages.props

@@ -12,7 +12,7 @@
     <PackageVersion Include="Grpc.AspNetCore" Version="2.67.0" />
     <PackageVersion Include="Grpc.Net.Client" Version="2.67.0" />
     <PackageVersion Include="Grpc.Net.Client.Web" Version="2.67.0" />
-    <PackageVersion Include="Grpc.Tools" Version="2.68.1" />
+    <PackageVersion Include="Grpc.Tools" Version="2.69.0" />
     <PackageVersion Include="MassTransit" Version="8.3.4" />
     <PackageVersion Include="Microsoft.AspNetCore.SignalR.Client" Version="9.0.1" />
     <PackageVersion Include="Microsoft.Build" Version="15.9.20" />