[GH] Update dependency protobuf to v29

This is an imported pull request from #109.

Resolves #109

Bug: NA
Test: presubmits

Github-Pr-Head-Sha: 808cbfc
GitOrigin-RevId: b1404a7008fd836b37ef83dd40d32439787b602c
Change-Id: Ibe6d88b19260489b8e0530d6b9f83bf2d9f7093e

Author: renovate-bot

MODULE.bazel

@@ -58,7 +58,7 @@ use_repo(node, "nodejs", "nodejs_toolchains")
 # Protobuf and abseil are linked against by goma's input processor so we must keep the source versions in sync
 bazel_dep(
     name = "protobuf",
-    version = "28.2",  # Same version as used in goma fork
+    version = "29.1",  # Same version as used in goma fork
     repo_name = "com_google_protobuf",
 )
 bazel_dep(name = "abseil-cpp", repo_name = "com_google_absl")
@@ -75,7 +75,7 @@ bazel_dep(name = "googletest", version = "1.14.0.bcr.1", repo_name = "com_google
 
 gclient_repository = use_repo_rule("//:gclient.bzl", "gclient_repository")
 
-GOMA_REV = "b2f15f7360d58a9fb881586fff3645ce154eb70b"
+GOMA_REV = "e9dfe680f70abeaddf44356983a3e02e6afb5b73"
 
 gclient_repository(
     name = "goma",