Pin googletest version within cmake scripts, as master does not exist anymore

Author: sparkprime

CMakeLists.txt.in

@@ -8,7 +8,7 @@ project(googletest-download NONE)
 include(ExternalProject)
 ExternalProject_Add(googletest
 		GIT_REPOSITORY    https://github.com/google/googletest.git
-		GIT_TAG           master
+		GIT_TAG           release-1.11.0
 		SOURCE_DIR        "${GLOBAL_OUTPUT_PATH}/googletest-src"
 		BINARY_DIR        "${GLOBAL_OUTPUT_PATH}/googletest-build"
 		CONFIGURE_COMMAND ""