Try caching deps

.github/workflows/test.yml

@@ -13,8 +13,20 @@ jobs:
       - uses: actions/checkout@v6
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
+        env:
+          BUNDLE_GEMFILE: ruby/Gemfile
         with:
           ruby-version: 4.0.0
+          bundler-cache: true
+      - name: Cache apt packages
+        uses: actions/cache@v4
+        with:
+          path: |
+            /var/cache/apt
+            /var/lib/apt/lists
+          key: ${{ runner.os }}-apt-${{ hashFiles('.github/workflows/test.yml') }}
+          restore-keys: |
+            ${{ runner.os }}-apt-
       - name: Bootstrap
         run: make bootstrap
       - name: Run tests