[feat] admin api/cli to delete package uploaded by pulsar-admin functions upload

### Search before asking

- [X] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar.

### Motivation

There is `pulsar-admin functions upload` feature but no delete feature provided. So any file/package uploaded by this method will be in the pulsar storage forever (including anonymous package provided when create a function via API).

Due to some reason, our client team keep uploading package to pulsar functions and seem like now every new pulsar-worker started, it has to download all uploaded package including orphan ones.

### Solution

Provide a feature to list and delete orphan package or simply delete a package

### Alternatives

Provide a document to manual delete related znode in /pulsar/functions/... and their related entries in bookeepers

### Anything else?

_No response_

### Are you willing to submit a PR?

- [ ] I'm willing to submit a PR!

Start by tracing the existing pulsar-admin functions upload command and the Functions API path that stores uploaded packages. Read how package references are recorded in Pulsar storage, including the mentioned /pulsar/functions/... znodes and BookKeeper entries. Done means the supported interface can either list and remove orphan packages or delete a specified uploaded package, with behavior covered by the relevant tests.

Written by the indexing model from the issue text.