Run codegen

Author: laurmaedje

.github/workflows/ci.yml

@@ -11,6 +11,8 @@ jobs:
       - uses: Swatinem/rust-cache@v2
       - run: cargo test --workspace --no-run
       - run: cargo test --workspace --no-fail-fast
+      - run: cargo run -p typst-assets-codegen -- html
+      - run: git diff --exit-code
 
   checks:
     name: Check clippy, formatting, and documentation