Bump subscriptions-transport-ws from 0.9.19 to 0.11.0 (#7429)

Bumps [subscriptions-transport-ws](https://github.com/apollostack/subscriptions-transport-ws) from 0.9.19 to 0.11.0.
- [Release notes](https://github.com/apollostack/subscriptions-transport-ws/releases)
- [Changelog](https://github.com/apollographql/subscriptions-transport-ws/blob/master/CHANGELOG.md)
- [Commits](https://github.com/apollostack/subscriptions-transport-ws/compare/v0.9.19...v0.11.0)

---
updated-dependencies:
- dependency-name: subscriptions-transport-ws
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package-lock.json

@@ -45781,9 +45781,9 @@
       }
     },
     "subscriptions-transport-ws": {
-      "version": "0.9.19",
-      "resolved": "https://registry.npmjs.org/subscriptions-transport-ws/-/subscriptions-transport-ws-0.9.19.tgz",
-      "integrity": "sha512-dxdemxFFB0ppCLg10FTtRqH/31FNRL1y1BQv8209MK5I4CwALb7iihQg+7p65lFcIl8MHatINWBLOqpgU4Kyyw==",
+      "version": "0.11.0",
+      "resolved": "https://registry.npmjs.org/subscriptions-transport-ws/-/subscriptions-transport-ws-0.11.0.tgz",
+      "integrity": "sha512-8D4C6DIH5tGiAIpp5I0wD/xRlNiZAPGHygzCe7VzyzUoxHtawzjNAY9SUTXU05/EY2NMY9/9GF0ycizkXr1CWQ==",
       "requires": {
         "backo2": "^1.0.2",
         "eventemitter3": "^3.1.0",

package.json

@@ -101,7 +101,7 @@
     "pdfjs-dist": "2.5.207",
     "raphael": "2.3.0",
     "rxjs": "^6.6.3",
-    "subscriptions-transport-ws": "^0.9.19",
+    "subscriptions-transport-ws": "^0.11.0",
     "tslib": "^2.3.0",
     "zone.js": "~0.10.2"
   },