Update absl to get rid of OOB warning
Without this, there are many instances of a warning about OOB indices inside of string_view in absl.
@zhangskz My inclination is that we don't want to make this change but I'm open to being convinced. Or maybe we need to persuade ABSL to fix something here?
https://github.com/abseil/abseil-cpp/commit/50d39219dc5a63f26d3871cfb3dbe198091eadad
This is the fix I'm trying to pick up. Up to you!
I don't think it makes sense for protobuf to update its absl lower-bound to avoid a spurious warning if its otherwise still compatible, as this could cause other users to fail to find a valid absl version. IIUC, minimal version selection means bzlmod should typically still resolve to a higher version of absl if possible.
It should be sufficient to handle this in the root module via overrides to pin the absl version or by silencing warnings if needed.