WDUniqueNamesPropertyDisabledUiTest does not apply Webdav app property

### Description
In the CI configuration test fails because `WebdavDocumentEventListener` takes:
```
jmix.webdav.auto-generate-unique-resource-uri=true
```
despite `@SpringBootTest` has:
```
properties = ["jmix.webdav.auto-generate-unique-resource-uri=false"]
```