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 Moved up to a newer version of the pipeline templates so get support for lava test results retrival from the lava server.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