Use PyTinyTeX instead in ci

Author: JessicaTegner

.github/workflows/ci.yaml

@@ -35,11 +35,18 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Print Python Information
         run: python -VV
-      - name: Specify tinytex mirror (CTAN_REPO)
+      - name: Install TinyTeX
         run: |
-          echo "CTAN_REPO=https://mirrors.dotsrc.org/ctan/" >> $GITHUB_ENV
-      - name: install TinyTeX
-        uses: r-lib/actions/setup-tinytex@v2
+          pip3 install -U pytinytex
+          python3 -c "import pytinytex; pytinytex.download_tinytex()"
+          echo "Adding TinyTeX to PATH"
+          TINYTEX_PATH=$(python3 -c "import pytinytex; print(pytinytex.get_tinytex_path())")
+          echo "$TINYTEX_PATH" >> $GITHUB_PATH
+      - name: Update TeX Live packages
+        run: |
+          echo "Updating TeX Live packages"
+          tlmgr update --self
+          tlmgr update --all
       - name: Install and configure Poetry
         run: |
           pip3 install -U poetry setuptools