use poetry self add to avoid Windows path issue, see: https://github.com/python-poetry/poetry/issues/10028

.github/workflows/release.yml

@@ -66,6 +66,10 @@ jobs:
           path: .venv
           key: venv-${{ runner.os }}-${{ hashFiles('**/poetry.lock') }}
 
+      - name: Install Poetry plugins
+        run: poetry self add poethepoet
+        shell: bash
+
       - name: Install dependencies
         run: poetry install --with build
         shell: bash