Add line to remove existing .egg-info directories

.github/workflows/build.yml

@@ -49,6 +49,7 @@ jobs:
       run: sphinx-build -E -W -b html . _build/html
     - name: Build Python package
       run: |
+        setuptools clean --all
         pip install --upgrade build twine
         for file in $(find -not -path "./.*" -not -path "./docs*" \( -name "*.py" -o -name "*.toml" \) ); do
             sed -i -e "s/0.0.0+auto.0/1.2.3/" $file;

setup.py

@@ -112,4 +112,4 @@ setup(
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: Implementation :: MicroPython",
     ],
-)
+)