CI ports from Travis CI (#3435)

* Attempt 1, I suppose.

* Add the remaining 2 out of 3 jobs

* Spacing matters T_T

* So does formatting...

* More formatting fixing.

* First attempt at postgres services.

* Postgres attempt 2

* Update tests.yml

Flatten a python version I suppose.

* Update tests.yml

* Update tests.yml

* Update tests.yml

* Update tests.yml

* I wonder if this works lmao

* this is fun™

* let's go back

* add fail-fast

* Added publishing workflows

Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>

.github/workflows/publish_pypi.yml

@@ -0,0 +1,26 @@
+name: Publish to PyPI
+on:
+  push:
+    tags:
+     - "*"
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v1
+      with:
+        python-version: '3.8'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install setuptools wheel twine
+    - name: Build and publish
+      env:
+        TWINE_USERNAME: __token__
+        TWINE_PASSWORD: ${{ secrets.pypi_token }}
+      run: |
+        python setup.py sdist bdist_wheel
+        twine upload dist/*