is_file() returning False when it should return True

```
if __name__ == "__main__":
server = "https://artifactory.com/path/to/file/file.csv"
art = ArtifactoryPath(server,
auth=("USER", "PASSWORD"))
print(art.is_file())
```

I am facing the following issue. I am successfully authenticating to the Artifactory server and checking if a path is file using the is_file() function. The response should be True, but I am getting False instead. I tried running this code on Python 3.9, 3.10, 3.11, and I am facing the same problem.

Reproduce the provided Python example against the stated Artifactory file path, then inspect the ArtifactoryPath.is_file() entry point and the response it uses. Done means the check returns True for an accessible file while preserving correct behavior for non-files.

Written by the indexing model from the issue text.