Add GitHub Action for PyPi packages (tkellogg#6)

- Implemented a GitHub Action to automatically publish the package to PyPI upon new tag releases.
- Action builds the package, creates distribution files, and uploads them to PyPI.

Closes tkellogg#6

.github/workflows/push_wheel_to_pypi.yml

@@ -0,0 +1,56 @@
+name: Publish to PyPI
+on:
+  push
+
+jobs:
+  pypi-publish:
+    name: Upload release to PyPI
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/fossil
+      permissions:
+        id-token: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade setuptools wheel
+          pip install --upgrade twine
+
+      - name: Build and publish wheel
+        run: |
+          python -m build
+          twine upload dist/*.whl
+
+      - name: Get tag name
+        id: tag_name
+        run: echo "##vso[task.setvariable variable=tag_name;isOutput=true]" &
+          git describe --tags --abbrev=0
+
+  build:
+    name: Build distribution
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade setuptools wheel
+          pip install --upgrade twine
+      - name: Build and publish wheel
+        run: |
+          python -m build
+          twine upload dist/*.whl