Gitman

- Fixed logic to included all nested configs.

- Updated nested config lookup to ignore build and package directories.

- Added `--no-scripts` option to skip install/update scripts.
- Fixed logic in filtering nested configs.

- Updated messaging to clarify when nested dependencies are updated.
- Added a warning when no dependencies match the specified names.
- Added `all` as a keyword to bypass the default dependency group.

- Fixed handling of `depth` to find nested configs. (DavidWatkins)

- Replaced deprecated `pkg_resources` with `importlib` for package metadata.