Fix missing dependency for CI publishing.

Author: ArnaudBelcour

.github/workflows/python-publish.yml

@@ -21,7 +21,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install setuptools wheel twine
+        pip install setuptools wheel twine build
         pip install -r requirements.txt
     - name: Build and publish
       env: