(try to) fix package upload

.gitlab-ci.yml

@@ -57,6 +57,9 @@ upload:
   image: curlimages/curl:latest
   rules:
     - if: $CI_COMMIT_TAG
+  # we use the files created by the 'build' job
+  dependencies: 
+    - build
   script:
     - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file "dist/dokos-$CI_COMMIT_TAG-py3-none-any.whl" "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/packages/generic/$CI_COMMIT_TAG/dokos-$CI_COMMIT_TAG-py3-none-any.whl"'