Update protobuf to v3.17.3
diff --git a/cmake/external/protobuf.cmake b/cmake/external/protobuf.cmake
index 0b64519..52a56d6 100644
--- a/cmake/external/protobuf.cmake
+++ b/cmake/external/protobuf.cmake
@@ -63,7 +63,7 @@
ExternalProject_Add(${PROTOBUF_TARGET}
PREFIX ${PROTOBUF_TARGET}
GIT_REPOSITORY https://github.com/google/protobuf.git
- GIT_TAG 214c77e1b76e63e512bd675d1c300c80438642b6
+ GIT_TAG v3.17.3
UPDATE_COMMAND ""
CONFIGURE_COMMAND ${CMAKE_COMMAND} ${PROTOBUF_INSTALL_DIR}/src/${PROTOBUF_TARGET}/cmake
-G${CMAKE_GENERATOR}