run npm i with test workflow (opendatahub-io#5542)

Author: christianvogt

.github/workflows/test.yml

@@ -37,7 +37,7 @@ jobs:
         with:
           node-version: ${{ env.NODE_VERSION }}
       - name: Install dependencies
-        run: npm ci
+        run: npm install
 
       - name: Check for uncommitted changes
         run: git diff --exit-code