chore(deps): update protobuf to v21.6 (#9863)

Author: coryan

CHANGELOG.md

@@ -107,7 +107,9 @@ For status on this, see https://github.com/googleapis/google-cloud-cpp/issues/88
   details.
 </details>
 
-## v1.43.0 (or maybe v2.43.0) - TBD
+## v1.42.1 - 2022-09
+
+- Update Protobuf version in Bazel configuration to v21.6 ([#9863](https://github.com/googleapis/google-cloud-cpp/pull/9863))
 
 ## v1.42.0 - 2022-06
 

bazel/google_cloud_cpp_deps.bzl

@@ -104,11 +104,11 @@ def google_cloud_cpp_deps():
     if "com_google_protobuf" not in native.existing_rules():
         http_archive(
             name = "com_google_protobuf",
-            strip_prefix = "protobuf-21.1",
+            strip_prefix = "protobuf-21.6",
             urls = [
-                "https://github.com/protocolbuffers/protobuf/archive/v21.1.tar.gz",
+                "https://github.com/protocolbuffers/protobuf/archive/v21.6.tar.gz",
             ],
-            sha256 = "f1a83673cbcaff6346a8fba87a9c02c0f943a4a696b6c7d1b71586d97609db12",
+            sha256 = "dbb16fdbca8f277c9a194d9a837395cde408ca136738d94743130dd0de015efd",
         )
 
     # Load BoringSSL, this is used by gRPC, but as I write this (2021-06-03, circa gRPC-1.37.1), the version used by

ci/cloudbuild/dockerfiles/debian-stretch.Dockerfile

@@ -116,7 +116,7 @@ RUN curl -sSL https://github.com/nlohmann/json/archive/v3.10.5.tar.gz | \
     cd /var/tmp && rm -fr build
 
 WORKDIR /var/tmp/build/protobuf
-RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.1.tar.gz | \
+RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.6.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

ci/cloudbuild/dockerfiles/demo-centos-7.Dockerfile

@@ -106,7 +106,7 @@ RUN curl -sSL https://github.com/abseil/abseil-cpp/archive/20211102.0.tar.gz | \
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.1.tar.gz | \
+RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.6.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

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

@@ -86,7 +86,7 @@ RUN apt-get update && \
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.1.tar.gz | \
+RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.6.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

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

@@ -97,7 +97,7 @@ RUN curl -sSL https://github.com/nlohmann/json/archive/v3.10.5.tar.gz | \
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.1.tar.gz | \
+RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.6.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

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

@@ -60,7 +60,7 @@ RUN curl -sSL https://github.com/abseil/abseil-cpp/archive/20211102.0.tar.gz | \
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.1.tar.gz | \
+RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.6.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

ci/cloudbuild/dockerfiles/demo-fedora.Dockerfile

@@ -127,7 +127,7 @@ RUN curl -sSL https://github.com/nlohmann/json/archive/v3.10.5.tar.gz | \
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.1.tar.gz | \
+RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.6.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

ci/cloudbuild/dockerfiles/demo-opensuse-leap.Dockerfile

@@ -66,7 +66,7 @@ RUN curl -sSL https://github.com/abseil/abseil-cpp/archive/20211102.0.tar.gz | \
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.1.tar.gz | \
+RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.6.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \

ci/cloudbuild/dockerfiles/demo-rockylinux-8.Dockerfile

@@ -83,7 +83,7 @@ RUN curl -sSL https://github.com/abseil/abseil-cpp/archive/20211102.0.tar.gz | \
 
 # ```bash
 WORKDIR /var/tmp/build/protobuf
-RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.1.tar.gz | \
+RUN curl -sSL https://github.com/protocolbuffers/protobuf/archive/v21.6.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_BUILD_TYPE=Release \