Update Doxygen Awesome theme to 2.3.3 (latest)

Author: dmadison

.github/workflows/docs.yml

@@ -34,7 +34,7 @@ jobs:
 
       - name: Install Themes
         env:
-          DOXYGEN_AWESOME_VERSION: 2.2.1
+          DOXYGEN_AWESOME_VERSION: 2.3.3
         working-directory: ./docs
         run: |
           git clone --depth 1 -b v${{ env.DOXYGEN_AWESOME_VERSION }} https://github.com/jothepro/doxygen-awesome-css