third_party/private_membership: fix missing deps for proto compile actions

We need to have imported proto as proto_data_sources in BUILD.gn to
run the action remotely without workaround config in siso.

Bug: b:366137880
Change-Id: I8c290d7f021c42732ca116301ab1c07fbd418acd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5869315
Auto-Submit: Takuto Ikuta <tikuta@chromium.org>
Commit-Queue: Sergiy Belozorov <sergiyb@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1356408}
NOKEYCHECK=True
GitOrigin-RevId: 36c1824f289b1ab74377b177dcb825149ff4a134
1 file changed