[ci] #186: Introduce pyupgrade job

.gitlab-ci.yml

@@ -65,6 +65,14 @@ lint:
   script:
     - pre-commit run --all-files pylint
 
+pyupgrade:
+  extends:
+    - .code_changes
+    - .pre-commit
+  stage: checks
+  script:
+    - pre-commit run --all-files pyupgrade
+
 type:
   extends:
     - .code_changes