chore(project): add GitHub Actions workflow for automatic releases

.github/workflows/main.yml

@@ -0,0 +1,26 @@
+name: "Build and publish new version"
+
+on:
+  push:
+    tags: "*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-python@v2
+        name: Install Python
+        with:
+          python-version: "3.9"
+
+      - name: Install poetry
+        run: pip install poetry --pre
+
+      - name: Build wheels
+        run: poetry build
+
+      - name: Publish wheels
+        run: poetry publish --username ${{ secrets.PYPI_USER }} --password ${{ secrets.PYPI_PW }}