fix: components/gitpod-messagebus/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-URLPARSE-2407770
- https://snyk.io/vuln/SNYK-JS-URLPARSE-2401205
- https://snyk.io/vuln/SNYK-JS-URLPARSE-2412697
- https://snyk.io/vuln/SNYK-JS-URLPARSE-2407759

components/gitpod-messagebus/package.json

@@ -20,7 +20,7 @@
   },
   "dependencies": {
     "@gitpod/gitpod-protocol": "0.1.5",
-    "amqplib": "^0.8.0",
+    "amqplib": "^0.9.0",
     "opentracing": "^0.14.4",
     "uuid": "^8.3.2"
   },