Update release.yml

Update release.yml according to pypi docs.

You can find the documentation [here](https://packaging.python.org/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows/)

Change token for test pypi and change name to all upper case

Add workflow_dispatch to mannually trigger action

add on tags to action

change syntax for pushing tags

.github/workflows/release.yml

@@ -2,32 +2,48 @@ name: Push to PyPi
 
 on:
   push:
-    branches:
-      - master
+    tags:
+      - "v*"
+    branches: [master]
+  workflow_dispatch:
 
 jobs:
-  test:
+  build-n-publish:
     runs-on: "ubuntu-latest"
 
     steps:
       - name: Checkout source
-        uses: actions/checkout@v2
+        uses: actions/checkout@master
 
-      - name: Set up Python 3.8
-        uses: actions/setup-python@v1
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: 3.9
 
-      - name: Install build dependencies
-        run: python -m pip install build wheel
+      - 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: Build distributions
-        shell: bash -l {0}
-        run: python setup.py sdist bdist_wheel
+      - name: Publish distribution 📦 to Test PyPI
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          skip_existing: true
+          password: ${{ secrets.TEST_PYPI_TOKEN }}
+          repository_url: https://test.pypi.org/legacy/
 
-      - name: Publish package to PyPI
-        if: github.repository == 'automl/Auto-PyTorch' && github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
+      - name: Publish distribution 📦 to PyPI
+        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
         uses: pypa/gh-action-pypi-publish@master
         with:
-          user: __token__
-          password: ${{ secrets.pypi_token }}
+          password: ${{ secrets.PYPI_TOKEN }}