Merge pull request #507 from strictdoc-project/poetry-update

CI: fix broken Poetry installation when Python 3.10 is used

.github/workflows/release.yml

@@ -4,6 +4,9 @@ on:
   release:
     types: [created]
 
+env:
+  POETRY_VERSION: 1.2.0a2
+
 jobs:
   deploy:
     runs-on: ubuntu-latest
@@ -13,11 +16,13 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: '3.x'
+        python-version: '3.10'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python
+        curl -fsS -o install-poetry.py \
+          "https://raw.githubusercontent.com/python-poetry/poetry/$POETRY_VERSION/install-poetry.py"
+        python install-poetry.py -y
         echo "PATH=$HOME/.poetry/bin:$PATH" >> $GITHUB_ENV
     - name: Build and publish
       run: |