adding pypi release to github actions on tag

.github/workflows/python-app.yml

@@ -6,9 +6,12 @@ name: EMAnnotationSchemas
 on:
   push:
     branches: master
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+'
   pull_request:
     branches: master
 
+
 jobs:
   test:
     name: Test against different Python versions
@@ -60,3 +63,26 @@ jobs:
     - name: Test with pytest
       run: |
         pytest
+
+  publish:
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.11
+      - name: Build and publish to PyPI
+        uses: pypa/[email protected]
+        with:
+          user: __token__
+          password: ${{ secrets.PYPI_API_TOKEN }}
+          packages_dir: dist
+          verify_metadata: true
+        env:
+          # Ensure dependencies are installed and your package is built
+          PRE_BUILD_COMMANDS: >-
+            pip install build &&
+            python -m build