CI: Update package script

.gitlab-ci.yml

@@ -19,8 +19,8 @@ run-pylint:
 run-build:
   stage: build
   script:
-    - ./autogen.sh
-    - make dist
+    - python3 setup.py sdist
+    - cd dist
     - export FN="gajim-default-"$(date +%F)".tar"
     - mv gajim-*.tar.gz $FN.gz
     - mkdir tmp_add_plugins
@@ -29,6 +29,7 @@ run-build:
     - tar xzf $FN.gz
     - rm $FN.gz
     - export GF=$(find . -maxdepth 1 -type d -name 'gajim-*')
+    - mkdir -p $GF/plugins/
     - cd $GF/plugins/
     - curl -O https://ftp.gajim.org/plugins_1/plugin_installer.zip
     - unzip plugin_installer.zip