chore(deps): update all dependencies (#2267)

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <[email protected]>

WORKSPACE

@@ -73,14 +73,23 @@ http_archive(
 # instantiated in grpc_deps().
 http_archive(
     name = "com_google_protobuf",
-    sha256 = "7c3ebd7aaedd86fa5dc479a0fda803f602caaf78d8aff7ce83b89e1b8ae7442a",
-    strip_prefix = "protobuf-28.3",
-    urls = ["https://github.com/protocolbuffers/protobuf/archive/v28.3.tar.gz"],
+    sha256 = "10a0d58f39a1a909e95e00e8ba0b5b1dc64d02997f741151953a2b3659f6e78c",
+    strip_prefix = "protobuf-29.0",
+    urls = ["https://github.com/protocolbuffers/protobuf/archive/v29.0.tar.gz"],
 )
 load("@com_github_grpc_grpc//bazel:grpc_deps.bzl", "grpc_deps")
 
 grpc_deps()
 
+# Pin the version of rules_cc to the version that is present in
+# https://github.com/protocolbuffers/protobuf/blob/29.x/protobuf_deps.bzl#L92-L98
+http_archive(
+    name = "rules_cc",
+    urls = ["https://github.com/bazelbuild/rules_cc/releases/download/0.0.16/rules_cc-0.0.16.tar.gz"],
+    sha256 = "bbf1ae2f83305b7053b11e4467d317a7ba3517a12cef608543c1b1c5bf48a4df",
+    strip_prefix = "rules_cc-0.0.16",
+)
+
 load("@com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps", "PROTOBUF_MAVEN_ARTIFACTS")
 # This is actually already done within grpc_deps but calling this for Bazel convention.
 protobuf_deps()