scipp/scippnexus: v23.01.1

• Update copyright year by @jl-wynen in https://github.com/scipp/scippnexus/pull/89
• Copy more complete pre-commit config from scipp by @SimonHeybrock in https://github.com/scipp/scippnexus/pull/90
• Pre commit in ci by @jl-wynen in https://github.com/scipp/scippnexus/pull/93
• Do not create event weights with variances by @SimonHeybrock in https://github.com/scipp/scippnexus/pull/94
• Support nested loading as DataGroup and change error handling by @SimonHeybrock in https://github.com/scipp/scippnexus/pull/95
• Update version handling and dependencies by @SimonHeybrock in https://github.com/scipp/scippnexus/pull/96

Full Changelog: https://github.com/scipp/scippnexus/compare/22.12.3...23.01.0