Add publish python package action

Cureently set to use the test pypi rather than "production" while this action is being set up/tested

Author: DocOtak

.github/workflows/publish.yml

@@ -0,0 +1,17 @@
+name: Publish Python package
+on:
+  push:
+    tags:
+      - "v*.*.*"
+  workflow_dispatch:
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build and publish to pypi
+        uses: JRubics/poetry-publish@v1.13
+        with:
+            pypi_token: ${{ secrets.PYPI_TOKEN }}
+            repository_name: "testpypi"
+            repository_url: "https://test.pypi.org/legacy/"