Refactor GitHub Actions workflow to install LaTeX dependencies and build document directly, updating artifact upload step

.github/workflows/main.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Install LaTeX
         run: |
           curl -fsSL https://miktex.org/download/key | tee /usr/share/keyrings/miktex-keyring.asc > /dev/null
-          echo "deb [signed-by=/usr/share/keyrings/miktex-keyring.asc] https://miktex.org/download/ubuntu noble universe" | tee /etc/apt/sources.list.d/miktex.list
+          echo "deb [signed-by=/usr/share/keyrings/miktex-keyring.asc] https://miktex.org/download/ubuntu jammy universe" | sudo tee /etc/apt/sources.list.d/miktex.list
           apt-get update
           apt-get install miktex -y
           miktexsetup --shared=yes finish