Fix wheel installation

.github/workflows/doc.yml

@@ -12,7 +12,7 @@ jobs:
 
     - name: Create Build Environment
       run: |
-        sudo apt install doxygen python3-virtualenv python3-wheel
+        sudo apt install doxygen python3-virtualenv
         sudo npm install -g less clean-css
         cmake -E make_directory ${{runner.workspace}}/build
 

doc/build.py

@@ -24,6 +24,7 @@ def create_build_env(venv_dir='virtualenv'):
   # Install Sphinx and Breathe. Require the exact version of Sphinx which is
   # compatible with Breathe.
   pip = Pip(venv_dir)
+  pip.install('wheel')
   pip.install('six')
   pip.install('sphinx-doc/sphinx', 'v3.3.0')
   pip.install('michaeljones/breathe', 'v4.23.0')