brpc作为子模块，cmake编译时error: 'z_stream' does not name a type

**Describe the bug (描述bug)**

`In file included from /root/MEVpp/third-party/brpc/src/brpc/policy/gzip_compress.h:23,
from /root/MEVpp/third-party/brpc/src/brpc/builtin/flot_min_js.cpp:21:
/root/vcpkg/installed/arm64-linux/include/google/protobuf/io/gzip_stream.h:95:3: error: 'z_stream' does not name a type
95 | z_stream zcontext_;
| ^~~~~~~~
/root/vcpkg/installed/arm64-linux/include/google/protobuf/io/gzip_stream.h: In member function 'const char* google::protobuf::io::GzipInputStream::ZlibErrorMessage() const':
/root/vcpkg/installed/arm64-linux/include/google/protobuf/io/gzip_stream.h:81:56: error: 'zcontext_' was not declared in this scope
81 | inline const char* ZlibErrorMessage() const { return zcontext_.msg; }
| ^~~~~~~~~
/root/vcpkg/installed/arm64-linux/include/google/protobuf/io/gzip_stream.h: At global scope:
/root/vcpkg/installed/arm64-linux/include/google/protobuf/io/gzip_stream.h:183:3: error: 'z_stream' does not name a type
183 | z_stream zcontext_;
| ^~~~~~~~
/root/vcpkg/installed/arm64-linux/include/google/protobuf/io/gzip_stream.h: In member function 'const char* google::protobuf::io::GzipOutputStream::ZlibErrorMessage() const':
/root/vcpkg/installed/arm64-linux/include/google/protobuf/io/gzip_stream.h:149:56: error: 'zcontext_' was not declared in this scope
149 | inline const char* ZlibErrorMessage() const { return zcontext_.msg; }
| ^~~~~~~~~
make[2]: *** [third-party/brpc/src/CMakeFiles/SOURCES_LIB.dir/build.make:678: third-party/brpc/src/CMakeFiles/SOURCES_LIB.dir/brpc/builtin/flot_min_js.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:380: third-party/brpc/src/CMakeFiles/SOURCES_LIB.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....`
**To Reproduce (复现方法)**
brpc作为子模块，vcpkg安装各个依赖（zip, protobuf, gflags, openssl）

**Expected behavior (期望行为)**

**Versions (各种版本)**
OS: Ubuntu 20.04 arm
Compiler: gcc12
brpc:1.8.0
protobuf: arm64-linux 3.21.12

**Additional context/screenshots (更多上下文/截图)**


Start by reproducing the CMake build described for brpc 1.8.0 as a submodule on Ubuntu 20.04 arm with the listed vcpkg dependencies. Inspect brpc/policy/gzip_compress.h, brpc/builtin/flot_min_js.cpp, and the included google/protobuf/io/gzip_stream.h around z_stream; done means the build completes without the reported z_stream errors.

Written by the indexing model from the issue text.