Add GitHub Actions workflow for PyPI deployment

Author: milanofthe

.github/workflows/pypi_deployment.yml

@@ -0,0 +1,36 @@
+name: Publish PathSim to PyPI
+
+on:
+  release:
+    types: [published] 
+  workflow_dispatch: 
+
+permissions:
+  contents: read
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest  
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0 
+    
+    - name: Set up Python
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.x'
+    
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install build wheel setuptools
+    
+    - name: Build package
+      run: python -m build
+    
+    - name: Publish package
+      uses: pypa/gh-action-pypi-publish@27b31702a0e7fc50959f5ad993c78deac1bdfc29
+      with:
+        user: __token__
+        password: ${{ secrets.PYPI_API_TOKEN }}