ci: debug regression tests

- distinction between R versions which produce the results to test
- add Gitlab artefact instruction for making results available for tests in next jobs in the pipeline

Refs #59
15 jobs for 59-add-comparative-tests-with-master-branch-on-examples in 30 minutes and 49 seconds (queued for 8 minutes and 50 seconds)
Status Name Job ID Coverage
  Update Packages
passed update_packages_devel #104348

00:00:01

passed update_packages_oldrel #104349

00:00:01

passed update_packages_patched #104347

00:00:01

 
  Build
passed build_devel #104351

00:00:20

passed build_oldrel #104352

00:00:19

passed build_patched #104350

00:00:20

 
  Regression
passed regression_devel #104354

00:00:55

passed regression_oldrel #104355

00:00:46

passed regression_patched #104353

00:00:55

 
  Tests
passed check_as_cran_devel #104359

00:01:28

passed check_as_cran_oldrel #104361

00:01:13

passed check_as_cran_patched #104357

00:01:26

passed check_not_cran_devel #104358

00:08:17

passed check_not_cran_oldrel #104360

00:06:22

passed check_not_cran_patched #104356

00:08:18