Drop Ubuntu 21.04

.gitlab-ci.yml

@@ -222,32 +222,6 @@ upload/ubuntu/impish:
     - ubuntu/impish:x86_64
     - ubuntu/impish
 
-# hirsute
-ubuntu/hirsute:
-  <<: *source
-  variables:
-    DOCKER_IMAGE: ubuntu/hirsute
-
-ubuntu/hirsute:x86_64:
-  <<: *binary
-  variables:
-    DOCKER_IMAGE: ubuntu/hirsute
-  dependencies:
-    - ubuntu/hirsute
-
-test/ubuntu/hirsute:x86_64:
-  <<: *test
-  variables:
-    DOCKER_IMAGE: ubuntu/hirsute
-  dependencies:
-    - ubuntu/hirsute:x86_64
-
-upload/ubuntu/hirsute:
-  <<: *upload
-  dependencies:
-    - ubuntu/hirsute:x86_64
-    - ubuntu/hirsute
-
 ubuntu/focal:
   <<: *source
   variables: