python-wheels.yml - bumps cibuildwheel version

The version number of the cibuildwheel package is the thing that controls
which version(s) of python are used to build the wheels.

I'm bumping the version number to the latest currently available so we get
builds for Python versions 3.6 - 3.12

Signed-off-by: Barnaby Robson <brobson@ilm.com>

.github/workflows/python-wheels.yml

@@ -63,7 +63,7 @@ jobs:
             python-version: '3.x'
 
       - name: Install cibuildwheel
-        run: python -m pip install cibuildwheel==2.8.1
+        run: python -m pip install cibuildwheel==2.16.2
 
       - name: Create setup.py
         run: |