Migrate to python 3.8 (#1824)

* Migrate to python 3.8

* Fix tests on Py38

* cleanup tests

Co-authored-by: Paulus Schoutsen <balloob@gmail.com>

.github/workflows/ci.yaml

@@ -89,7 +89,7 @@ jobs:
       - name: Run black
         run: |
           . venv/bin/activate
-          black --target-version py37 --check supervisor tests setup.py
+          black --target-version py38 --check supervisor tests setup.py
 
   lint-dockerfile:
     name: Check Dockerfile
@@ -345,7 +345,7 @@ jobs:
     needs: prepare
     strategy:
       matrix:
-        python-version: [3.7, 3.8]
+        python-version: [3.8]
     name: Run tests Python ${{ matrix.python-version }}
     steps:
       - name: Check out code from GitHub

.github/workflows/release-drafter.yml

@@ -0,0 +1,15 @@
+name: Release Drafter
+
+on:
+  push:
+    # branches to consider in the event; optional, defaults to all
+    branches:
+      - master
+
+jobs:
+  update_release_draft:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: release-drafter/release-drafter@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}