Web tests: Write asset hashes first

Author: simolus3

.github/workflows/main.yml

@@ -177,6 +177,8 @@ jobs:
             dart-dependencies-${{ matrix.dart }}-
             dart-dependencies-
 
+      - name: Write asset hashes
+        run: dart run tool/write_asset_hashes.dart
       - name: Web tests
         run: |
           cp ../sqlite-compiled/*.wasm web/