Updated protobuf to 29.3

Author: github-actions[bot]

MODULE.bazel

@@ -38,7 +38,7 @@ bazel_dep(name = "re2", version = "2024-07-02.bcr.1")
 bazel_dep(name = "abseil-cpp", version = "20250127.0")
 
 # https://github.com/protocolbuffers/protobuf/tree/main?tab=readme-ov-file#bazel-with-bzlmod
-bazel_dep(name = "protobuf", version = "29.2")
+bazel_dep(name = "protobuf", version = "29.3")
 
 # https://registry.bazel.build/modules/rules_java
 bazel_dep(name = "rules_java", version = "8.9.0")