Bump version to 1.13.0 in preparation for release

PiperOrigin-RevId: 502626077
Change-Id: I3aad27a8b725cf73163e52ef2e28e6cdfc13082b

Author: derekmauro

CMakeLists.txt

@@ -16,7 +16,7 @@ if (POLICY CMP0077)
 endif (POLICY CMP0077)
 
 project(googletest-distribution)
-set(GOOGLETEST_VERSION 1.12.1)
+set(GOOGLETEST_VERSION 1.13.0)
 
 if(NOT CYGWIN AND NOT MSYS AND NOT ${CMAKE_SYSTEM_NAME} STREQUAL QNX)
   set(CMAKE_CXX_EXTENSIONS OFF)