fix(news-service): mount news-app-password secret for scraper DB

Adds NEWS_DB_PASSWORD env var from existing news-app-password secret
so the secondary DB connection to news_app_db can authenticate.

Co-authored-by: Hermes DevOps <hermes@devops.local>

apps/base/customer1/trading-platform/news-service/deployment.yaml

@@ -58,6 +58,11 @@ spec:
                 secretKeyRef:
                   name: trading-db-credentials
                   key: password
+            - name: NEWS_DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: news-app-password
+                  key: password
           startupProbe:
             httpGet:
               path: /health