Update dependency protocolbuffers/protobuf to v31.1 (#166)

Signed-off-by: Renovate <20075896+sszynrae@users.noreply.github.com>

Author: sszynrae

Dockerfile

@@ -42,7 +42,7 @@ EOF
 
 # Install a more recent release of protoc:
 # renovate: datasource=github-releases depName=protocolbuffers/protobuf versioning=semver-coerced
-ARG PB_VERSION="v31.0"
+ARG PB_VERSION="v31.1"
 RUN <<EOF
     if [[ ${DOCKER_TARGET_ARCH} == 'aarch64' ]]; then
       DOCKER_TARGET_ARCH=aarch_64