CI: Avoid pkginfo 1.9 due to pypa/twine#940

.github/workflows/pythonpackage.yml

@@ -51,7 +51,7 @@ jobs:
     - name: Check python version and install build
       run: |
         python --version
-        python -m pip install -U build twine
+        python -m pip install -U build twine "pkginfo<1.9"
     - name: Build smriprep
       run: python -m build
     - name: Check distributions