Make: Pin cibuildwheel==2.21.3

Author: ashvardanian

.github/workflows/prerelease.yml

@@ -465,7 +465,7 @@ jobs:
         if: matrix.os == 'ubuntu-24.04'
         uses: docker/setup-qemu-action@v3
       - name: Install cibuildwheel
-        run: python -m pip install cibuildwheel
+        run: python -m pip install cibuildwheel==2.21.3
       - name: Build wheels
         run: cibuildwheel --output-dir wheelhouse
         env:

.github/workflows/release.yml

@@ -93,7 +93,7 @@ jobs:
         if: matrix.os == 'ubuntu-24.04' # We only need QEMU for Linux builds
         uses: docker/setup-qemu-action@v3
       - name: Install cibuildwheel
-        run: python -m pip install cibuildwheel
+        run: python -m pip install cibuildwheel==2.21.3
       - name: Build wheels
         run: cibuildwheel --output-dir wheelhouse
         env: