Fix Github Actions CI

Author: dokempf

.github/workflows/paper.yml

@@ -21,17 +21,16 @@ jobs:
         run: pip install -r requirements.txt
 
       - name: Install LaTeX requirements for matplotlib
-        run: sudo apt install -y texlive-latex-base texlive-latex-extra cm-super-minimal texlive-fonts-extra
+        run: sudo apt install -y texlive-latex-base texlive-latex-extra cm-super-minimal texlive-fonts-extra latexmk
 
       - name: Create contributor snippet
         run: python contributors.py
 
       - name: Create group composition plot
         run: cd group_composition_plot && ./create_paper_plots.sh && cd -
 
-      - uses: xu-cheng/latex-action@v3
-        with:
-          root_file: paper.tex
+      - name: Compile paper
+        run: latexmk -pdf paper.tex
 
       - name: move
         run: mkdir -p github_artifacts && mv ${{ env.DIR }}/*.pdf ./github_artifacts/