Update elasticsearch requirement from ~=7.0 to ~=7.17 in /frontend

Updates the requirements on [elasticsearch](https://github.com/elastic/elasticsearch-py) to permit the latest version.
- [Release notes](https://github.com/elastic/elasticsearch-py/releases)
- [Commits](elastic/elasticsearch-py@7.0.0...v7.17.9)

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

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

frontend/requirements.txt

@@ -1,6 +1,6 @@
 flask~=2.0
 flasgger~=0.9.7
 flask_restful~=0.3.10
-elasticsearch~=7.0
+elasticsearch~=7.17
 spacy~=2.3
 requests~=2.31