add test pypi workflow

Author: JR-1991

.github/workflows/test-publish.yml

@@ -0,0 +1,14 @@
+name: Build and publish
+
+on: workflow_dispatch
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: "Build and publish to PyPi"
+        uses: JRubics/poetry-publish@v1.17
+        with:
+          pypi_token: ${{ secrets.TEST_PYPI_TOKEN }}