Merge branch 'feature/fedora-31' into 'master'

Drop Fedora 31

See merge request !11

.gitlab-ci.yml

@@ -122,23 +122,6 @@ upload/fedora/32:
   dependencies:
     - build/fedora/32
 
-build/fedora/31:
-  <<: *build
-  variables:
-    DOCKER_IMAGE: fedora/31
-
-test/fedora/31:
-  <<: *test
-  variables:
-    DOCKER_IMAGE: fedora/31
-  dependencies:
-    - build/fedora/31
-
-upload/fedora/31:
-  <<: *upload
-  dependencies:
-    - build/fedora/31
-
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