* stable-3.0:
Switch bazel version to 0.29.1
Upgrade elasticsearch-rest-client to 7.3.2
Add deleteChanges to list of supported permissions
Remove obsolete permissions from gr-access-behavior
Update git submodules
Update git submodules
Allow admins to index a change even if the branch is not Readable for them
Change-Id: I95733ed9f0a7a3e8230468cd183880836051ce37