Add Github action to publish nightly to PyPi (#8)

Author: hertschuh

.github/workflows/nightly.yml

@@ -0,0 +1,48 @@
+name: Nightly
+
+on:
+  workflow_dispatch: # To Generate wheels on demand outside of schedule.
+  schedule:
+    - cron: '0 3 * * *' # run at 3 AM UTC / 8 PM PDT
+
+permissions:
+  contents: read
+
+jobs:
+  run-test-for-nightly:
+    uses: ./.github/workflows/actions.yml
+  nightly:
+    name: Build Wheel file and upload
+    needs: [run-test-for-nightly]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.9
+      - name: Get pip cache dir
+        id: pip-cache
+        run: |
+          python -m pip install --upgrade pip setuptools
+          echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
+      - name: pip cache
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.pip-cache.outputs.dir }}
+          key: ${{ runner.os }}-pip-${{ hashFiles('setup.py') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip setuptools
+          pip install twine
+          pip install -r requirements.txt --progress-bar off
+      - name: Build wheel file
+        run: |
+          python pip_build.py --nightly
+      - name: Publish KerasRS Nightly to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          password: ${{ secrets.PYPI_NIGHTLY_API_TOKEN }}
+          verbose: true