Restore Tulsi gitsync
While GitHub is the source of truth, the rules_apple/Tulsi community maintainers are still receiving code pushes from google3 for Tulsi into the GitHub repo's upstream branch.
# direction can be ==> or <=>
REPOSITORIES=(
"https://bazel.googlesource.com/bazel ==> git@github.com:bazelbuild/bazel.git bazel master"
+ "https://bazel.googlesource.com/tulsi ==> git@github.com:bazelbuild/tulsi.git tulsi upstream"
)
set -euxo pipefail
