Move ColumnStore dependency on jemalloc from rpm Requires: to Recommends:

this makes it a weak dependency, signalling that ColumnStore can work
without jemalloc and that while jemalloc is desired, missing jemalloc
is not a fatal error.

storage/columnstore/CMakeLists.txt

@@ -22,7 +22,8 @@ CMAKE_SYSTEM_PROCESSOR STREQUAL "i686")
         # Needed to bump the component changes up to the main scope
         APPEND_FOR_CPACK(CPACK_COMPONENTS_ALL)
         IF (RPM)
-            APPEND_FOR_CPACK(CPACK_RPM_columnstore-engine_PACKAGE_REQUIRES " binutils jemalloc net-tools python3")
+            APPEND_FOR_CPACK(CPACK_RPM_columnstore-engine_PACKAGE_REQUIRES " binutils net-tools python3")
+            APPEND_FOR_CPACK(CPACK_RPM_columnstore-engine_PACKAGE_RECOMMENDS " jemalloc")
             APPEND_FOR_CPACK(CPACK_RPM_columnstore-engine_USER_FILELIST ";%ignore /var/lib;%ignore /var")
             APPEND_FOR_CPACK(CPACK_RPM_columnstore-engine_PACKAGE_CONFLICTS " thrift MariaDB-columnstore-platform MariaDB-columnstore-libs")
             # these three don't have the list semantics, so no append here