Merge branch 'os152' into 'master'

Drop openSUSE 15.2

See merge request !20

.gitlab-ci.yml

@@ -122,20 +122,3 @@ upload/openSUSE/15.3:
   <<: *upload
   dependencies:
   - build/opensuse/15.3
-
-build/opensuse/15.2:
-  <<: *build
-  variables:
-    DOCKER_IMAGE: opensuse/15.2
-
-test/opensuse/15.2:
-  <<: *test
-  variables:
-    DOCKER_IMAGE: opensuse/15.2
-  dependencies:
-    - build/opensuse/15.2
-
-upload/openSUSE/15.2:
-  <<: *upload
-  dependencies:
-    - build/opensuse/15.2