Use the "token" PyPI user.

Author: Mariatta

.travis.yml

@@ -62,7 +62,7 @@ jobs:
       # This happens when other CI (AppVeyor etc.) has already uploaded
       # the very same dist (usually sdist).
       skip-existing: true
-      user: &pypi-user core-workflow
+      user: &pypi-user __token__
       password: &pypi-password
         secure: >-
           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