CI: Fix build and upgrade spacy and python

Upgrades as far as apparently possible: Python 3.11 and Spacy 2.3.9
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4de9b84..3917ca3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,5 @@
 default:
-  image: python:3.6
+  image: python:3.11
 
 variables:
   PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
@@ -13,7 +13,8 @@
   - python -m venv venv
   - source venv/bin/activate
   - export PYTHONPATH=PYTHONPATH:.
-  - pip install -r requirements.txt
+  - cp $(find / -name  longintrepr.h) /usr/local/include/python3.11/
+  - pip install --use-pep517 -r requirements.txt
   - python -m spacy download de_core_news_lg
   - apt update -y
   - apt-get install cpanminus -y
@@ -21,6 +22,9 @@
 
 test-job:
   stage: test
+  artifacts:
+    paths:
+      - rei.spacy.zip
   script:
     - mkdir logs
     - korapxml2conllu rei.zip  | python ./systems/parse_spacy_pipe.py  | conllu2korapxml > rei.spacy.zip