chore: update protobuf to v31.1 (#15188)

Author: scotthart

MODULE.bazel

@@ -24,7 +24,7 @@ bazel_dep(name = "platforms", version = "0.0.11")
 bazel_dep(name = "bazel_skylib", version = "1.7.1")
 bazel_dep(name = "rules_cc", version = "0.1.1")
 bazel_dep(name = "abseil-cpp", version = "20250127.1", repo_name = "abseil-cpp")
-bazel_dep(name = "protobuf", version = "30.2", repo_name = "com_google_protobuf")
+bazel_dep(name = "protobuf", version = "31.1", repo_name = "com_google_protobuf")
 bazel_dep(name = "boringssl", version = "0.0.0-20230215-5c22014")
 bazel_dep(name = "nlohmann_json", version = "3.11.3", repo_name = "com_github_nlohmann_json")
 bazel_dep(name = "curl", version = "8.8.0.bcr.3", repo_name = "com_github_curl_curl")

bazel/workspace0.bzl

@@ -155,10 +155,10 @@ def gl_cpp_workspace0(name = None):
         http_archive,
         name = "com_google_protobuf",
         urls = [
-            "https://github.com/protocolbuffers/protobuf/archive/v30.2.tar.gz",
+            "https://github.com/protocolbuffers/protobuf/archive/v31.1.tar.gz",
         ],
-        sha256 = "07a43d88fe5a38e434c7f94129cad56a4c43a51f99336074d0799c2f7d4e44c5",
-        strip_prefix = "protobuf-30.2",
+        sha256 = "c3a0a9ece8932e31c3b736e2db18b1c42e7070cd9b881388b26d01aa71e24ca2",
+        strip_prefix = "protobuf-31.1",
     )
 
     # Load BoringSSL. This could be automatically loaded by gRPC. But as of

ci/cloudbuild/dockerfiles/demo-debian-bullseye.Dockerfile

@@ -89,7 +89,7 @@ RUN apt-get update && \
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v30.0.tar.gz | \
+RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v31.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

ci/cloudbuild/dockerfiles/demo-rockylinux-9.Dockerfile

@@ -88,7 +88,7 @@ RUN curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250127.1.tar.gz |
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v30.0.tar.gz | \
+RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v31.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

ci/cloudbuild/dockerfiles/demo-ubuntu-focal.Dockerfile

@@ -57,7 +57,7 @@ RUN curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250127.1.tar.gz |
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v30.0.tar.gz | \
+RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v31.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

ci/cloudbuild/dockerfiles/demo-ubuntu-jammy.Dockerfile

@@ -57,7 +57,7 @@ RUN curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250127.1.tar.gz |
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v30.0.tar.gz | \
+RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v31.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

ci/cloudbuild/dockerfiles/fedora-latest-cmake.Dockerfile

@@ -128,7 +128,7 @@ RUN curl -fsSL https://github.com/nlohmann/json/archive/v3.11.3.tar.gz | \
     ldconfig && cd /var/tmp && rm -fr build
 
 WORKDIR /var/tmp/build/protobuf
-RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v30.0.tar.gz | \
+RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v31.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

ci/cloudbuild/dockerfiles/fedora-latest-cxx20.Dockerfile

@@ -141,7 +141,7 @@ RUN curl -fsSL https://github.com/nlohmann/json/archive/v3.11.3.tar.gz | \
     cd /var/tmp && rm -fr build
 
 WORKDIR /var/tmp/build/protobuf
-RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v30.0.tar.gz | \
+RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v31.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_CXX_STANDARD=20 \

ci/cloudbuild/dockerfiles/gcc-oldest.Dockerfile

@@ -79,7 +79,7 @@ RUN curl -fsSL https://github.com/google/benchmark/archive/v1.9.2.tar.gz | \
     ldconfig && cd /var/tmp && rm -fr build
 
 WORKDIR /var/tmp/build/protobuf
-RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v30.0.tar.gz | \
+RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v31.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

ci/cloudbuild/dockerfiles/ubuntu-20.04-install.Dockerfile

@@ -125,7 +125,7 @@ RUN curl -fsSL https://github.com/nlohmann/json/archive/v3.11.3.tar.gz | \
 
 
 WORKDIR /var/tmp/build/protobuf
-RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v30.0.tar.gz | \
+RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v31.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \