Fix a typo in Admin: intergration -> integration
What does this MR do?
This is a backport of gitlab-ee!8444 (merged).
This fixes a typo in Elastic admin page:
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.