HPCC-10975 Ensure EMBED dataset parameters are passed as link counted

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #5621 from ghalliday/issue10975

HPCC-10975 Ensure EMBED dataset parameters are passed as link counted

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>