This commit introduces a new `collect github` command with two subcommands:
- `repo`: Clones a GitHub repository. This functionality was previously under the `collect git` command.
- `release`: Downloads assets from the latest GitHub release of a repository.
The `release` subcommand supports the following features:
- Version checking against a provided version string using the `--version` flag.
- Downloading a specific file from the release using the `--file` flag.
- Downloading all assets from the release and packing them into a DataNode using the `--pack` flag.
- Specifying an output directory for the downloaded files using the `--output` flag.
This commit also resolves a merge conflict by restructuring the `collect` command and its subcommands. The `collect git` and `collect github-release` commands have been consolidated under the new `collect github` command to provide a more organized and user-friendly command structure.
