chore: update rxjs

Author: 4gray

package-lock.json

@@ -39,7 +39,7 @@
         "@angular/platform-browser": "^10.0.14",
         "@angular/platform-browser-dynamic": "^10.0.14",
         "@angular/router": "^10.0.14",
-        "rxjs": "~6.5.5",
+        "rxjs": "~6.6.2",
         "tslib": "^2.0.0",
         "vscode-test": "^1.3.0",
         "zone.js": "~0.10.2"