fix(deps): update dependency rxjs to ^6.6.3 (#50)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -139,7 +139,7 @@
   },
   "dependencies": {
     "ignore": "^5.1.8",
-    "rxjs": "^6.5.5",
+    "rxjs": "^6.6.3",
     "tagged-template-noop": "^2.1.1"
   }
 }

yarn.lock

@@ -7078,10 +7078,10 @@ rxjs-report-usage@^1.0.4:
     glob "~7.1.6"
     prompts "~2.3.2"
 
-rxjs@^6.5.5:
-  version "6.5.5"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.5.5.tgz#c5c884e3094c8cfee31bf27eb87e54ccfc87f9ec"
-  integrity sha512-WfQI+1gohdf0Dai/Bbmk5L5ItH5tYqm3ki2c5GdWhKjalzjg93N3avFjVStyZZz+A2Em+ZxKH5bNghw9UeylGQ==
+rxjs@^6.6.3:
+  version "6.6.3"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.6.3.tgz#8ca84635c4daa900c0d3967a6ee7ac60271ee552"
+  integrity sha512-trsQc+xYYXZ3urjOiJOuCOa5N3jAZ3eiSpQB5hIT8zGlL2QfnHLJ2r7GMkBGuIausdJN1OneaI6gQlsqNHHmZQ==
   dependencies:
     tslib "^1.9.0"