ci: Get lava results of test runs

To allow us to see when lava tests have failed to run correctly we can
use the lava results to generate a junit file for each lava based test
run by parsing the results through a new conversion script.
To allow us to run tests when not selected by default a new FORCE_TESTS
variable has been added to all manual pipeline runs to override the
standard test selection logic.
Moved up to a newer version of the pipeline templates so get support for
lava test results retrival from the lava server.

Changelog: other
Signed-off-by: Drew Reed <Drew.Reed@arm.com>