Install dependencies in the public package workflow

Author: asmeurer

.github/workflows/publish-package.yml

@@ -45,6 +45,9 @@ jobs:
         python -m pip install build twine
         python -m pip list
 
+    - name: Install dependencies
+      run: python -m pip install -r requirements.txt
+
     - name: Build a wheel and a sdist
       run: |
         PYTHONWARNINGS=error,default::DeprecationWarning python -m build .