carto/protobuf @ revert-6272-MutableSequence-import

salamaniibm 7ba4a99e00 adding protoc support for s390x		6 lat temu
..
linux	edbc27fb81 Print logs of failing tests	6 lat temu
macos	fa8f155dcf Reinstall wget on mac (#6505)	6 lat temu
release	7ba4a99e00 adding protoc support for s390x	6 lat temu
windows	36fa3c6d4d add missing C# windows presubmit.cfg file (#5894)	6 lat temu
README.md	6156af10e8 Add MacOS and Linux tests to Kokoro	8 lat temu

Kokoro Infrastructure

The files in this directory serve as plumbing for running Protobuf tests under Kokoro, our internal CI.