Or-tools and gRPC conflict

[teqdruid]

The scheduling library has a dependency on or-tools, which has a dependency on a library called 'Abseil' (or absl). The ESI runtime has a dependency on gRPC, which has a dependency on Abseil as well. They compile against the same version (which is not the default), but end up with linking errors all regarding absl::lts_20230125::string_view.