Move tests to heavyweight runners

On lightweight runners, tests would sometimes run out of disk space
or memory or both.

Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk>

.gitlab-ci.yml

@@ -3,30 +3,27 @@ stages:
   - test
   - docker
 
-py310:
-  image: python:3.10
+.test:
   tags:
-    - lightweight
+    - heavyweight
   script:
   - pip install .[test]
   - python setup.py build sdist bdist
-  - pytest --junit-xml=test-results.xml
+  - pytest --junit-xml=test-results.xml -v
   artifacts:
     reports:
       junit: test-results.xml
 
+py310:
+  image: python:3.10
+  extends:
+    - .test
+
 py311:
-  allow_failure: true
   image: python:3.11
-  tags:
-    - lightweight
-  script:
-  - pip install .[test]
-  - python setup.py build sdist bdist
-  - pytest --junit-xml=test-results.xml
-  artifacts:
-    reports:
-      junit: test-results.xml
+  extends:
+    - .test
+  allow_failure: true
 
 codestyle:
   allow_failure: true