build(deps): bump rxjs from 6.6.7 to 7.8.1

Bumps [rxjs](https://github.com/reactivex/rxjs) from 6.6.7 to 7.8.1.
- [Release notes](https://github.com/reactivex/rxjs/releases)
- [Changelog](https://github.com/ReactiveX/rxjs/blob/7.8.1/CHANGELOG.md)
- [Commits](ReactiveX/rxjs@6.6.7...7.8.1)

---
updated-dependencies:
- dependency-name: rxjs
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -49,7 +49,7 @@
     "mobile-detect": "1.4.5",
     "moment": "2.30.1",
     "ngx-clipboard": "16.0.0",
-    "rxjs": "7.4.0",
+    "rxjs": "7.8.1",
     "tslib": "2.5.2",
     "zone.js": "0.14.4"
   },