Add wheel to pip

.gitlab-ci.yml

 image: clarinpl/python:3.8
 
-cache:
-  paths:
-    - .tox
 stages:
   - publish
 
-before_script:
-  - apt-get update -yqq
-    && apt-get install -yqq --no-install-recommends
-    make
-    g++
-    && apt-get autoremove -yqq --purge
-    && apt-get clean
-
 pypi_publish:
   before_script:
-   - pip install setuptools
-   - pip install build
+   - pip install build setuptools wheel
    - pip install twine
   only:
    - master