HPCC-10547 Reduce contention for persist locks by timing out quicker

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
HPCC-10547 Retain timeout for repeat=true (just in case)

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
HPCC-10547 Ensure that the lock is released (when contended) for atleast 5s

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #5248 from ghalliday/issue10547

HPCC-10547 Reduce contention for persist locks by timing out quicker

Reviewed-By: Jake Smith <jake.smith@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>