workflow: flexible version

Author: sebix

.github/workflows/mkdocs.yml

@@ -45,9 +45,10 @@ jobs:
           sudo apt install -y ./pandoc-3.7.0.2-1-amd64.deb
           sudo apt install -y texlive-latex-extra texlive-fonts-recommended texlive-fonts-extra
           tlmgr init-usertree
-          tlmgr repository add ftp://tug.org/historic/systems/texlive/2021/tlnet-final
+          version=$(tlmgr --version | awk '/version/ {print $5}')
+          tlmgr repository add ftp://tug.org/historic/systems/texlive/${version}/tlnet-final
           tlmgr repository remove https://mirror.ctan.org/systems/texlive/tlnet
-          tlmgr option repository ftp://tug.org/historic/systems/texlive/2021/tlnet-final
+          tlmgr option repository ftp://tug.org/historic/systems/texlive/${version}/tlnet-final
           tlmgr install sourcecodepro
 
       - name: "Install Python dependencies"