build(deps): bump eventsource from 1.1.0 to 1.1.1

Bumps [eventsource](https://github.com/EventSource/eventsource) from 1.1.0 to 1.1.1.
- [Release notes](https://github.com/EventSource/eventsource/releases)
- [Changelog](https://github.com/EventSource/eventsource/blob/master/HISTORY.md)
- [Commits](EventSource/eventsource@v1.1.0...v1.1.1)

---
updated-dependencies:
- dependency-name: eventsource
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package-lock.json

@@ -20,7 +20,7 @@
     "@types/node": "^14.11.10",
     "@types/object-hash": "^1.3.4",
     "async-redis": "^1.1.7",
-    "eventsource": "^1.0.7",
+    "eventsource": "^1.1.1",
     "express": "^4.17.1",
     "jsdom": "^16.2.1",
     "minimist": "^1.2.5",