ci(release): use default Python interpreter

.github/workflows/build.yml

@@ -138,15 +138,14 @@ jobs:
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
         with:
           fetch-depth: 0
-      - name: Set up Python
-        id: setup-python
-        uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # v5
+      - name: Identify Python version
+        run: echo "PYTHON_VERSION=$(python -V | cut -d' ' -f2)" >> "$GITHUB_ENV"
       - name: Cache Poetry
         id: cache-poetry
         uses: actions/cache@3624ceb22c1c5a301c8db4169662070a689d9ea8 # v4
         with:
           path: ${{ env.POETRY_HOME }}
-          key: poetry-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ env.POETRY_VERSION }}
+          key: poetry-${{ runner.os }}-${{ env.PYTHON_VERSION }}-${{ env.POETRY_VERSION }}
       - name: Install Poetry
         if: steps.cache-poetry.outputs.cache-hit != 'true'
         run: curl -sSL https://install.python-poetry.org | python
@@ -157,8 +156,8 @@ jobs:
         uses: actions/cache@3624ceb22c1c5a301c8db4169662070a689d9ea8 # v4
         with:
           path: .venv
-          key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('poetry.lock') }}
-          restore-keys: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-
+          key: venv-${{ runner.os }}-${{ env.PYTHON_VERSION }}-${{ hashFiles('poetry.lock') }}
+          restore-keys: venv-${{ runner.os }}-${{ env.PYTHON_VERSION }}-
       - name: Install dependencies
         if: steps.cache-venv.outputs.cache-hit != 'true'
         run: poetry install --no-interaction --no-root --sync -v