chore(deps): bump rxjs from 6.6.7 to 7.4.0 (#127)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

examples/browser-angular/package.json

@@ -23,7 +23,7 @@
     "global": "^4.4.0",
     "ipfs-core": "^0.12.2",
     "ipfs-core-types": "^0.8.0",
-    "rxjs": "~6.6.0",
+    "rxjs": "~7.4.0",
     "tslib": "^2.3.0",
     "zone.js": "~0.11.4"
   },