add npm install

Author: mjudeikis

.github/workflows/ci.yaml

@@ -34,6 +34,7 @@ jobs:
     - uses: actions/setup-node@v4
       with:
         node-version: '20'
+    - run: cd web && npm install
     - run: make build-web
     - run: make test-e2e
     - run: make test-e2e-contribs