Revert "remove builds"

This reverts commit 78941e1.

Author: jeertmans

.github/workflows/python-publish.yml

@@ -8,10 +8,38 @@ on:
     types: [published]
 
 jobs:
+  build_wheels:
+    name: Build wheels on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+
+    steps:
+      - uses: actions/checkout@v2
+
+      # Used to host cibuildwheel
+      - uses: actions/setup-python@v2
+
+      - name: Install package
+        run: python -m pip install -U manim tqdm
+
+      - name: Install cibuildwheel
+        run: python -m pip install -U setuptools wheel pip
+
+      - name: Build wheels
+        run: python setup.py sdist
+
+      - uses: actions/upload-artifact@v2
+        with:
+          name: dist
+          path: dist/*.tar.*
+
   release:
     name: Release
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
     runs-on: ubuntu-latest
+    needs: [ build_wheels ]
     steps:
       - uses: actions/download-artifact@v2
         with: