Adding release.yml for CI release job (#21)

* Addind release.yml for CI release job

* Adding testpypi step for pre-releases

* Using latest actions versions

* v5 for setup-python action

.github/workflows/release.yml

@@ -0,0 +1,27 @@
+name: Release
+on:
+  release:
+    types: [ 'published' ]
+
+jobs:
+  pypi-publish:
+    name: upload release to PyPI
+    runs-on: ubuntu-latest
+    environment: pypi
+    permissions:
+      id-token: write
+    steps:
+      - name: Setup Python
+        uses: actions/setup-python@v5
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build package
+        run: pip install build && python -m build && ls -l dist
+      - name: Publish package distributions to Test PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        continue-on-error: true
+        with:
+          repository_url: https://test.pypi.org/legacy/
+      - name: Publish package distributions to PyPI
+        if: "!github.event.release.prerelease"
+        uses: pypa/gh-action-pypi-publish@release/v1