ci: update release workflow

[ci skip]

.github/workflows/pypi-release.yml

@@ -42,10 +42,9 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Install pip requirements
+      - name: Install build requirements
         run: |
-          python -m pip install -U pip setuptools wheel build
-          python -m pip install -r requirements.txt
+          python -m pip install -U pip setuptools wheel build numpy cython
       - name: Setup and install manylinux1_x86_64 wheel
         run: |
           python setup.py bdist_wheel --plat-name=manylinux1_x86_64