fix: modify pack_server.sh to copy libdsn_utils.so (#563)

scripts/pack_server.sh

@@ -90,6 +90,7 @@ mkdir -p ${pack}/bin
 copy_file ./DSN_ROOT/bin/pegasus_server/pegasus_server ${pack}/bin
 copy_file ./DSN_ROOT/lib/libdsn_meta_server.so ${pack}/bin
 copy_file ./DSN_ROOT/lib/libdsn_replica_server.so ${pack}/bin
+copy_file ./DSN_ROOT/lib/libdsn_utils.so ${pack}/bin
 copy_file ./rdsn/thirdparty/output/lib/libPoco*.so.48 ${pack}/bin
 copy_file ./rdsn/thirdparty/output/lib/libtcmalloc_and_profiler.so.4 ${pack}/bin
 copy_file ./scripts/sendmail.sh ${pack}/bin