change to using create-user and promote-user

[jdkandersson]

Applicable spec: N/A

Overview

Fixes the integration tests using the new create and promote user actions

Rationale

Required to fix the integration tests

Module Changes

None

Checklist

• The contributing guide was applied
• The documentation is generated using src-docs
• The PR is tagged with appropriate label (urgent, trivial, complex)
• Changelog has been updated
• Version has been incremented

Changelog not required since there are only changes to the tests, version increment not required.

[github-actions]

Lint checks failed for 72b24b5

```

/home/ubuntu/actions-runner/_work/discourse-gatekeeper/discourse-gatekeeper/tests/integration/conftest.py:8:1: F401 'asyncio' imported but unused

[github-actions]

Test coverage for 72b24b5

Name                                 Stmts   Miss Branch BrPart  Cover   Missing
--------------------------------------------------------------------------------
src/gatekeeper/__init__.py              96      0     42      0   100%
src/gatekeeper/action.py               158      0     48      0   100%
src/gatekeeper/check.py                 62      0     25      0   100%
src/gatekeeper/clients.py               11      0      0      0   100%
src/gatekeeper/commit.py                41      0     12      0   100%
src/gatekeeper/constants.py              8      0      0      0   100%
src/gatekeeper/content.py               49      0     10      0   100%
src/gatekeeper/discourse.py            157      0     34      0   100%
src/gatekeeper/docs_directory.py        32      0      8      0   100%
src/gatekeeper/download.py              21      0      2      0   100%
src/gatekeeper/exceptions.py            14      0      0      0   100%
src/gatekeeper/index.py                141      0     56      0   100%
src/gatekeeper/metadata.py              58      0     28      0   100%
src/gatekeeper/migration.py            101      0     33      0   100%
src/gatekeeper/navigation_table.py      64      0     20      0   100%
src/gatekeeper/reconcile.py            122      0     60      0   100%
src/gatekeeper/repository.py           292      0     88      0   100%
src/gatekeeper/sort.py                  42      0     26      0   100%
src/gatekeeper/types_.py               201      0     54      0   100%
--------------------------------------------------------------------------------
TOTAL                                 1670      0    546      0   100%

Static code analysis report

Working... ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 100% 0:00:01
Run started:2024-08-22 14:18:28.160302

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 17881
  Total lines skipped (#nosec): 3
  Total potential issues skipped due to specifically being disabled (e.g., #nosec BXXX): 0

Run metrics:
  Total issues (by severity):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
  Total issues (by confidence):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
Files skipped (0):