adding test pypi release action

.github/workflows/publish-to-test-pypi.yml

@@ -0,0 +1,36 @@
+name: Publish Python 🐍 distributions 📦 to TestPyPI
+
+on:
+  push:
+    tags:
+      - '**dev**'
+
+jobs:
+  build-n-publish:
+    name: Build and publish Python 🐍 distributions 📦 to TestPyPI
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v3
+      with:
+        python-version: "3.8"
+    - name: Install pypa/build
+      run: >-
+        python -m
+        pip install
+        build
+        --user
+    - name: Build a binary wheel and a source tarball
+      run: >-
+        python -m
+        build
+        --sdist
+        --wheel
+        --outdir dist/
+        .
+    - name: Publish distribution 📦 to Test PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1
+      with:
+        password: ${{ secrets.TEST_PYPI_API_TOKEN }}
+        repository_url: https://test.pypi.org/legacy/