Fix CI

Author: psiinon

.github/workflows/ci.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - main
   pull_request:
+  workflow_dispatch:
 
 jobs:
   build:
@@ -21,7 +22,9 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - run: |
         python -m pip install --upgrade pip
-        pipx install poetry==1.7.0
+        pip install setuptools==39.1.0
+        pipx install poetry==1.8.0
     - run: poetry install
+    - run: poetry add --group dev setuptools
     - run: poetry run pylama
     - run: poetry run py.test