fix(ci): fixing workflows and caching

.github/workflows/pages.yml

@@ -30,10 +30,15 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+      - name: Install Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+          cache: 'pip'
       - name: Setup Pages
         uses: actions/configure-pages@v2
       - name: Install Linux Dependencies
-        run: sudo apt install libcairo2-dev libpango1.0-dev ffmpeg
+        run: sudo apt install libcairo2-dev libpango1.0-dev ffmpeg libgl1
       - name: Install Python dependencies
         run: pip install manim sphinx sphinx_click furo
       - name: Install local Python package

.github/workflows/test_examples.yml

@@ -47,6 +47,7 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.pyversion }}
+          cache: 'pip'
       - name: Append to Path on MacOS and Ubuntu
         if: matrix.os == 'macos-latest' || matrix.os == 'ubuntu-latest'
         run: echo "${HOME}/.local/bin" >> $GITHUB_PATH