fix: upgrade rxjs from 7.5.5 to 7.8.1

Snyk has created this PR to upgrade rxjs from 7.5.5 to 7.8.1.

See this package in npm:
https://www.npmjs.com/package/rxjs

See this project in Snyk:
https://app.snyk.io/org/nexuscompute/project/f8ef472e-24dd-48f6-a0a1-8c239ab16c04?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -447,7 +447,7 @@
     "lodash": "^4.17.21",
     "marked": "^4.0.16",
     "open": "^7.4.2",
-    "rxjs": "^7.5.5",
+    "rxjs": "^7.8.1",
     "string-argv": "^0.3.1",
     "uuid": "^8.3.2",
     "validate-npm-package-name": "^3.0.0",