fix(deps): update dependency rxjs to v6.6.0

Author: renovate-bot

package-lock.json

@@ -26,7 +26,7 @@
     "@angular/router": "10.0.2",
     "bootstrap": "4.5.0",
     "core-js": "3.6.5",
-    "rxjs": "6.5.5",
+    "rxjs": "6.6.0",
     "tslib": "2.0.0",
     "zone.js": "0.10.3"
   },