Add texlive-fonts-recommended dependency

.github/workflows/ci.yml

@@ -3,6 +3,6 @@ jobs:
     build:
         runs-on: ubuntu-latest
         steps:
-          - run: sudo apt-get install --no-install-recommends -y latexmk
+          - run: sudo apt-get install --no-install-recommends -y latexmk texlive-fonts-recommended
           - uses: actions/checkout@v2
           - run: make