fix(ci): build with tsc before testing

.github/workflows/test.yml

@@ -26,6 +26,8 @@ jobs:
       - uses: oven-sh/setup-bun@v1
       - name: Install dependencies
         run: bun i vitest @vitest/coverage-istanbul --no-save --no-lock
+      - name: Build package
+        run: bun run build
       - name: Run vitest
         run: bun run coverage
       - uses: actions/configure-pages@v4