Update generated go proto bindings
Update generated go proto bindings

Update generated go proto bindings by running:

make train

in luci/milo, which is making the indicated change by running:

go generate luci/milo/api/proto/generate.go

TEST=make test
BUG=None

Change-Id: I3625053ae65475e6c0c68482d4621e6730d97e03
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/luci-go/+/1735803
Reviewed-by: Vadim Shtayura <9f116ddb1b24f6fc1916a676eb17161b6c07dfc1@chromium.org>
Commit-Queue: David Burger <f622056600ea133fccc5fabdc4eae1a68672d24c@chromium.org>

luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go