fix: upgrade @elastic/elasticsearch from 7.8.0 to 7.9.0

Snyk has created this PR to upgrade @elastic/elasticsearch from 7.8.0 to 7.9.0.

See this package in npm:
https://www.npmjs.com/package/@elastic/elasticsearch

See this project in Snyk:
https://app.snyk.io/org/securecodebox/project/c5781d78-eb0e-49a7-bbd6-c5629984717d?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

hooks/persistence-elastic/package-lock.json

@@ -10,7 +10,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "@elastic/elasticsearch": "^7.8.0",
+    "@elastic/elasticsearch": "^7.9.0",
     "lodash.chunk": "^4.2.0",
     "lodash.flatmap": "^4.5.0"
   },