Fix ENV var name

Author: cte

.env.integration.example

@@ -1 +1 @@
-OPEN_ROUTER_API_KEY=sk-or-v1-...
+OPENROUTER_API_KEY=sk-or-v1-...

.github/workflows/code-qa.yml

@@ -57,7 +57,7 @@ jobs:
           node-version: '18'
           cache: 'npm'
       - name: Create env.integration file
-        run: echo "OPEN_ROUTER_API_KEY=${{ secrets.OPEN_ROUTER_API_KEY }}" > .env.integration
+        run: echo "OPENROUTER_API_KEY=${{ secrets.OPENROUTER_API_KEY }}" > .env.integration
       - name: Check env.integration file
         run: cat .env.integration
       - name: Install dependencies