chore: bump message broker version (#1243)

Co-authored-by: Fredrik Bolmsten <fredrik.bolmsten@ess.eu>

Author: TCMeldrum

apps/backend/package-lock.json

@@ -46,7 +46,7 @@
     "@opentelemetry/sdk-trace-node": "^2.0.0",
     "@user-office-software/duo-localisation": "^1.2.0",
     "@user-office-software/duo-logger": "^2.3.2",
-    "@user-office-software/duo-message-broker": "^1.6.0",
+    "@user-office-software/duo-message-broker": "^1.8.0",
     "@user-office-software/duo-validation": "^5.1.20",
     "@user-office-software/openid": "^1.4.0",
     "await-to-js": "^2.1.1",