[enh] #96 new gitlab-ci secret env var for test.pypi.org deploy

.gitlab-ci.yml

@@ -107,4 +107,4 @@ release_test:
     - pip install -r requirements.txt
     - pip install -r requirements_deploy.txt
     - make build
-    - make deploy_test PYPI_PASSWORD=${PYPI_PASSWORD}
+    - make deploy_test PYPI_PASSWORD=${PYPI_TEST_PASSWORD}