Upgrade to poetry2 and update dependencies

.forgejo/workflows/ci.yml

@@ -17,13 +17,29 @@ jobs:
           DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends python3-venv pipx
 
       - name: Install Poetry
+        env:
+          PYTHON_BIN: ${{ matrix.python }}
+          POETRY_VERSION: "2.4.1"
         run: |
-          pipx install poetry==1.8.3
-          /root/.local/bin/poetry --version
+          set -eux
+          if ! command -v pipx >/dev/null 2>&1; then
+            "${PYTHON_BIN}" -m pip install --user pipx
+          fi
+          PIPX_BIN="$(command -v pipx || true)"
+          if [ -z "${PIPX_BIN}" ]; then
+            PIPX_BIN="${HOME}/.local/bin/pipx"
+          fi
+          "${PIPX_BIN}" install --python "${PYTHON_BIN}" "poetry==${POETRY_VERSION}"
           echo "$HOME/.local/bin" >> "$GITHUB_PATH"
+          export PATH="$HOME/.local/bin:$PATH"
+          poetry --version
+          poetry --version | grep -E "Poetry \(version 2\."
 
       - name: Install project deps (including test extras)
+        env:
+          PYTHON_BIN: ${{ matrix.python }}
         run: |
+          poetry env use "${PYTHON_BIN}"
           poetry install --with dev
 
       - name: Run test script