Automation helper: Avoid integration test failures in CRE

```
AssertionError: FAILURE: Crash report detected! MKAutomationException:
Error running automation call <tt>restart</tt>, output: <pre>Error
precompiling checks for host aut-helper-test-host: Failed to lookup IPv4 address
of aut-helper-test-host via DNS: [Errno -2] Name or service not known
(["Cannot lookup IP address of 'aut-helper-test-host' (Failed to lookup IPv4
address of aut-helper-test-host via DNS: [Errno -2] Name or service not known).
The host will not be monitored correctly."],)
```

Change-Id: I69f9c465dbca808fba3f6a435bdab3c6396c70eb
(cherry picked from commit d3f6321)

tests/integration/cmk/base/automation_helper/test_automation_helper.py

@@ -75,7 +75,10 @@ def test_config_reloading_with_reloader(site: Site) -> None:
 def test_standard_workflow_involving_automations(site: Site) -> None:
     hostname = "aut-helper-test-host"
     try:
-        site.openapi.hosts.create(hostname)
+        site.openapi.hosts.create(
+            hostname,
+            attributes={"ipaddress": "127.0.0.1"},
+        )
         site.activate_changes_and_wait_for_core_reload()
         show_host_response = site.openapi.get(f"objects/host/{hostname}")
         show_host_response.raise_for_status()