Fix echo command syntax in CVE scanning workflow

Author: minesh-s-patel

.github/workflows/cve-scanning-node.yml

@@ -30,5 +30,5 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm ci
-      - run: echo "user: ${OSS_INDEX_USERNAME}"
+      - run: echo "user $OSS_INDEX_USERNAME"
       - run: npx --yes auditjs ossi --whitelist allow-list.json -u $OSS_INDEX_USERNAME -p $OSS_INDEX_PASSWORD