HPCC-12554 Modify key file for update.ecl to reach clean regression test.

Update keyfile

Signed-off-by: Attila Vamos <attila.vamos@gmail.com>
Merge pull request #6621 from AttilaVamos/HPCC-12554-fix

HPCC-12554 Modify key file for update.ecl to reach clean regression test...

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>