change branch-2.0 version to 2.0.2-rc05 (#25031)

Author: xiaokang

gensrc/script/gen_build_version.sh

@@ -31,7 +31,7 @@ build_version_prefix="doris"
 build_version_major=2
 build_version_minor=0
 build_version_patch=2
-build_version_rc_version="rc04"
+build_version_rc_version="rc05"
 
 build_version="${build_version_prefix}-${build_version_major}.${build_version_minor}.${build_version_patch}-${build_version_rc_version}"