Update dependency rxjs to v7.5.2

Author: renovate-bot

package-lock.json

@@ -32,7 +32,7 @@
     "@nguniversal/express-engine": "13.0.1",
     "carbon-components-angular": "4.56.3",
     "express": "4.17.2",
-    "rxjs": "7.5.1",
+    "rxjs": "7.5.2",
     "tslib": "2.3.1",
     "zone.js": "0.11.4"
   },