clangd-ubuntu-clang: Bump gRPC back to 1.33.2
1.30.2 without the patches Debian has is buggy.
diff --git a/buildbot/google/docker/buildbot-clangd-ubuntu-clang/Dockerfile b/buildbot/google/docker/buildbot-clangd-ubuntu-clang/Dockerfile
index 19c6434..c82ee3a 100644
--- a/buildbot/google/docker/buildbot-clangd-ubuntu-clang/Dockerfile
+++ b/buildbot/google/docker/buildbot-clangd-ubuntu-clang/Dockerfile
@@ -53,8 +53,7 @@
# The grpc version shipped with Ubuntu 18.04 crashes on TSan checks.
ENV GRPC_INSTALL_PATH=/usr/local/lib/grpc
RUN cd /tmp ; \
- # Use gRPC 1.30.2 which is the version shipped on Debian unstable at the time of writing.
- git clone -b v1.30.2 --depth 1 --recursive --shallow-submodules https://github.com/grpc/grpc ; \
+ git clone -b v1.33.2 --depth 1 --recursive --shallow-submodules https://github.com/grpc/grpc ; \
cd grpc ; \
mkdir build; cd build ; \
cmake -G Ninja -DgRPC_INSTALL=ON -DCMAKE_INSTALL_PREFIX=${GRPC_INSTALL_PATH} -DCMAKE_BUILD_TYPE=Release .. ; \
