fix cypress cache

Author: jake-walker

.github/workflows/e2e.yml

@@ -17,7 +17,9 @@ jobs:
           node-version: 24
           cache: "pnpm"
       - name: Install dependencies
-        run: pnpm install
+        run: |
+          pnpm install
+          pnpm cypress install
       - name: Migrate database
         run: pnpm dlx wrangler d1 migrations apply DB --local
       - name: Build frontend