HPCC-9349 - HTTPCALL still failing due to missing line in commit

Previous commit (gh-4402) had a missing line in the the thor
master code that create the activity type, causing HTTPCALL still
to fail with 'unsupported acitivty kind'

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
Merge pull request #4808 from jakesmith/hpcc-9349b

HPCC-9349 - HTTPCALL still failing due to missing line in commit

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>