Update .github/workflows/test-and-publish.yaml

Co-authored-by: Caleb Aikens <[email protected]>

Author: philippedistributive

.github/workflows/test-and-publish.yaml

@@ -169,7 +169,7 @@ jobs:
         if: ${{ matrix.os == 'ubuntu-20.04' && matrix.python_version == '3.11' }}
         run: |
             sudo apt-get install -y graphviz 
-            # We need Doxygen 1.9 series
+            # the newest version in Ubuntu 20.04 repository is 1.8.17, but we need Doxygen 1.9 series
             wget -c -q https://www.doxygen.nl/files/doxygen-1.9.7.linux.bin.tar.gz
             tar xf doxygen-1.9.7.linux.bin.tar.gz
             cd doxygen-1.9.7 && sudo make install && cd -