[ci] remove python 3.8 wheels

As the project is io only

.gitlab-ci.yml

@@ -61,14 +61,6 @@ package centos[cpy37]:
   variables:
     <<: [*cpy37]
 
-package centos[cpy38]:
-  extends: .centos
-  dependencies:
-    - test centos[cpy38]
-  <<: *package
-  variables:
-    <<: [*cpy38]
-
 package windows[cpy37]:
   extends: .windows
   dependencies:
@@ -85,16 +77,6 @@ deploy centos[cpy37]:
   script:
     - ./ci/deploy.py
 
-.deploy centos[cpy38]:
-  extends: .centos
-  stage: deploy
-  only:
-    - tags
-  dependencies:
-    - package centos[cpy38]
-  script:
-    - ./ci/deploy.py
-
 .deploy windows[cpy37]:
   extends: .centos
   stage: deploy