Fix a typo in Admin: intergration -> integration (!23050) · Merge requests · GitLab.org / GitLab FOSS · GitLab

What does this MR do?

This is a backport of https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8444.

This fixes a typo in Elastic admin page: intergration -> integration.

Does this MR meet the acceptance criteria?

Changelog entry added, if necessary
[-] Documentation created/updated
[-] Tests added for this feature/bug
Conforms to the code review guidelines
Conforms to the merge request performance guidelines
Conforms to the style guides
Conforms to the database guides
[-] Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.