HPCC-8531 Use the keep going attribute for eclcc regression suite

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #3825 from ghalliday/issue8531

HPCC-8531 Use the keep going attribute for eclcc regression suite

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>