Merge branch 'drop-hirsute' into 'master'

Drop Ubuntu hirsute

See merge request !4

.gitlab-ci.yml

@@ -103,23 +103,6 @@ upload/debian/stretch:
 ###################################
 # Ubuntu
 ###################################
-build/ubuntu/hirsute:
-  <<: *build
-  variables:
-    DOCKER_IMAGE: ubuntu/hirsute
-
-test/ubuntu/hirsute:
-  <<: *test
-  variables:
-    DOCKER_IMAGE: ubuntu/hirsute
-  dependencies:
-  - build/ubuntu/hirsute
-
-upload/ubuntu/hirsute:
-  <<: *upload
-  dependencies:
-  - build/ubuntu/hirsute
-
 build/ubuntu/focal:
   <<: *build
   variables: