chore(deps): bump elasticsearch from 8.14.0 to 8.15.1 in /application

Bumps [elasticsearch](https://github.com/elastic/elasticsearch-py) from 8.14.0 to 8.15.1.
- [Release notes](https://github.com/elastic/elasticsearch-py/releases)
- [Commits](elastic/elasticsearch-py@v8.14.0...v8.15.1)

---
updated-dependencies:
- dependency-name: elasticsearch
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

application/requirements.txt

@@ -7,7 +7,7 @@ docx2txt==0.8
 duckduckgo-search==6.2.6
 ebooklib==0.18
 elastic-transport==8.15.0
-elasticsearch==8.14.0
+elasticsearch==8.15.1
 escodegen==1.0.11
 esprima==4.0.1
 esutils==1.0.1