Merge pull request #16 from pyth-network/fix/pypi_gh

Missing build dependency

Author: erancx

.github/workflows/pypi.yml

@@ -14,7 +14,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install setuptools wheel twine
+        pip install setuptools wheel twine build
     - name: Build and publish
       env:
         TWINE_USERNAME: __token__