ci: update release workflow

Signed-off-by: Daniel Bluhm <dbluhm@pm.me>

.github/workflows/publish-release.yml

@@ -10,37 +10,17 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
+      - name: Install poetry
+        run: pipx install poetry
       - name: Set up Python 3.6
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: 3.6
-      - name: Cache python environment
-        id: cache-env
-        uses: actions/cache@v2
-        with:
-          path: ${{ env.pythonLocation }}
-          key: ${{ runner.os }}-testing-${{ matrix.python-version }}-${{ hashFiles('poetry.lock') }}
-      - name: Install poetry
-        if: steps.cache-env.outputs.cache-hit != 'true'
-        run: |
-          pip install poetry==1.1.5
-      - name: Setup poetry environment
-        id: setup-poetry-env
-        run: |
-          poetry env use $(which python)
-          echo "::set-output name=poetry-env::$(poetry env info --path)"
-      - name: Cache poetry environment
-        id: cache-poetry
-        uses: actions/cache@v2
-        with:
-          path: ${{ steps.setup-poetry-env.outputs.poetry-env }}
-          key: ${{ runner.os }}-poetry-${{ matrix.python-version }}-${{ hashFiles('poetry.lock') }}
+          cache: poetry
       - name: Install dependencies
-        if: steps.cache-poetry.outputs.cache-hit != 'true'
-        run: |
-          poetry install
-      - name: Sanity check (run tests)
+        run: poetry install
+      - name: Confidence check (run tests)
         run: |
           poetry run pytest
       - name: Build package